# Retail API . projects . locations . catalogs . userEvents

## Instance Methods

Close httplib2 connections.

Writes a single user event from the browser. This uses a GET request to due to browser restriction of POST-ing to a 3rd party domain. This method is used only by the Retail API JavaScript pixel and Google Tag Manager. Users should not call this method directly.

Bulk import of User events. Request processing might be synchronous. Events that already exist are skipped. Use this method for backfilling historical user events. Operation.response is of type ImportResponse. Note that it is possible for a subset of the items to be successfully inserted. Operation.metadata is of type ImportMetadata.

Deletes permanently all user events specified by the filter provided. Depending on the number of events specified by the filter, this operation could take hours or days to complete. To test a filter, use the list command first.

Triggers a user event rejoin operation with latest product catalog. Events will not be annotated with detailed product information if product is missing from the catalog at the time the user event is ingested, and these events are stored as unjoined events with a limited usage on training and serving. This API can be used to trigger a 'join' operation on specified events with latest version of product catalog. It can also be used to correct events joined with wrong product catalog.

Writes a single user event.

### Method Details

`close()`

    Close httplib2 connections.

`collect(parent, ets=None, uri=None, userEvent=None, x__xgafv=None)`

    Writes a single user event from the browser. This uses a GET request to due to browser restriction of POST-ing to a 3rd party domain. This method is used only by the Retail API JavaScript pixel and Google Tag Manager. Users should not call this method directly.

    Args:
      parent: string, Required. The parent catalog name, such as `projects/1234/locations/global/catalogs/default_catalog`. (required)
      ets: string, The event timestamp in milliseconds. This prevents browser caching of otherwise identical get requests. The name is abbreviated to reduce the payload bytes.
      uri: string, The URL including cgi-parameters but excluding the hash fragment with a length limit of 5,000 characters. This is often more useful than the referer URL, because many browsers only send the domain for 3rd party requests.
      userEvent: string, Required. URL encoded UserEvent proto with a length limit of 2,000,000 characters.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Message that represents an arbitrary HTTP body. It should only be used for payload formats that can't be represented as JSON, such as raw binary or an HTML page. This message can be used both in streaming and non-streaming API methods in the request as well as the response. It can be used as a top-level request field, which is convenient if one wants to extract parameters from either the URL or HTTP template into the request fields and also want access to the raw HTTP body. Example: message GetResourceRequest { // A unique request id. string request_id = 1; // The raw HTTP body is bound to this field. google.api.HttpBody http_body = 2; } service ResourceService { rpc GetResource(GetResourceRequest) returns (google.api.HttpBody); rpc UpdateResource(google.api.HttpBody) returns (google.protobuf.Empty); } Example with streaming methods: service CaldavService { rpc GetCalendar(stream google.api.HttpBody) returns (stream google.api.HttpBody); rpc UpdateCalendar(stream google.api.HttpBody) returns (stream google.api.HttpBody); } Use of this type only changes how the request and response bodies are handled, all other features will continue to work unchanged.
      "contentType": "A String", # The HTTP Content-Type header value specifying the content type of the body.
      "data": "A String", # The HTTP request/response body as raw binary.
      "extensions": [ # Application specific response metadata. Must be set in the first response for streaming APIs.
        {
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
      ],
    }

`import_(parent, body=None, x__xgafv=None)`

    Bulk import of User events. Request processing might be synchronous. Events that already exist are skipped. Use this method for backfilling historical user events. Operation.response is of type ImportResponse. Note that it is possible for a subset of the items to be successfully inserted. Operation.metadata is of type ImportMetadata.

    Args:
      parent: string, Required. `projects/1234/locations/global/catalogs/default_catalog` (required)
      body: object, The request body.
        The object takes the form of:

    { # Request message for the ImportUserEvents request.
      "errorsConfig": { # Configuration of destination for Import related errors. # The desired location of errors incurred during the Import. Cannot be set for inline user event imports.
        "gcsPrefix": "A String", # Google Cloud Storage path for import errors. This must be an empty, existing Cloud Storage bucket. Import errors will be written to a file in this bucket, one per line, as a JSON-encoded `google.rpc.Status` message.
      },
      "inputConfig": { # The input config source for user events. # Required. The desired input location of the data.
        "bigQuerySource": { # BigQuery source import data from. # Required. BigQuery input source.
          "dataSchema": "A String", # The schema to use when parsing the data from the source. Supported values for product imports: * `product` (default): One JSON Product per line. Each product must have a valid Product.id. * `product_merchant_center`: See [Importing catalog data from Merchant Center](https://cloud.google.com/retail/recommendations-ai/docs/upload-catalog#mc). Supported values for user events imports: * `user_event` (default): One JSON UserEvent per line. * `user_event_ga360`: Using https://support.google.com/analytics/answer/3437719.
          "datasetId": "A String", # Required. The BigQuery data set to copy the data from with a length limit of 1,024 characters.
          "gcsStagingDir": "A String", # Intermediate Cloud Storage directory used for the import with a length limit of 2,000 characters. Can be specified if one wants to have the BigQuery export to a specific Cloud Storage directory.
          "partitionDate": { # Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values * A month and day value, with a zero year, such as an anniversary * A year on its own, with zero month and day values * A year and month value, with a zero day, such as a credit card expiration date Related types are google.type.TimeOfDay and `google.protobuf.Timestamp`. # BigQuery time partitioned table's _PARTITIONDATE in YYYY-MM-DD format. Only supported when ImportProductsRequest.reconciliation_mode is set to `FULL`.
            "day": 42, # Day of a month. Must be from 1 to 31 and valid for the year and month, or 0 to specify a year by itself or a year and month where the day isn't significant.
            "month": 42, # Month of a year. Must be from 1 to 12, or 0 to specify a year without a month and day.
            "year": 42, # Year of the date. Must be from 1 to 9999, or 0 to specify a date without a year.
          },
          "projectId": "A String", # The project ID (can be project # or ID) that the BigQuery source is in with a length limit of 128 characters. If not specified, inherits the project ID from the parent request.
          "tableId": "A String", # Required. The BigQuery table to copy the data from with a length limit of 1,024 characters.
        },
        "gcsSource": { # Google Cloud Storage location for input content. format. # Required. Google Cloud Storage location for the input content.
          "dataSchema": "A String", # The schema to use when parsing the data from the source. Supported values for product imports: * `product` (default): One JSON Product per line. Each product must have a valid Product.id. * `product_merchant_center`: See [Importing catalog data from Merchant Center](https://cloud.google.com/retail/recommendations-ai/docs/upload-catalog#mc). Supported values for user events imports: * `user_event` (default): One JSON UserEvent per line. * `user_event_ga360`: Using https://support.google.com/analytics/answer/3437719. Supported values for control imports: * 'control' (default): One JSON Control per line.
          "inputUris": [ # Required. Google Cloud Storage URIs to input files. URI can be up to 2000 characters long. URIs can match the full object path (for example, `gs://bucket/directory/object.json`) or a pattern matching one or more files, such as `gs://bucket/directory/*.json`. A request can contain at most 100 files, and each file can be up to 2 GB. See [Importing product information](https://cloud.google.com/retail/recommendations-ai/docs/upload-catalog) for the expected file format and setup instructions.
            "A String",
          ],
        },
        "userEventInlineSource": { # The inline source for the input config for ImportUserEvents method. # Required. The Inline source for the input content for UserEvents.
          "userEvents": [ # Required. A list of user events to import. Recommended max of 10k items.
            { # UserEvent captures all metadata information Retail API needs to know about how end users interact with customers' website.
              "attributes": { # Extra user event features to include in the recommendation model. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * The key must be a UTF-8 encoded string with a length limit of 5,000 characters. * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * For number attributes, at most 400 values are allowed. For product recommendation, an example of extra user information is traffic_channel, i.e. how user arrives at the site. Users can arrive at the site by coming to the site directly, or coming through Google search, and etc.
                "a_key": { # A custom attribute that is not explicitly modeled in Product.
                  "indexable": True or False, # If true, custom attribute values are indexed, so that it can be filtered, faceted or boosted in SearchService.Search. This field is ignored in a UserEvent. See SearchRequest.filter, SearchRequest.facet_specs and SearchRequest.boost_spec for more details.
                  "numbers": [ # The numerical values of this custom attribute. For example, `[2.3, 15.4]` when the key is "lengths_cm". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                    3.14,
                  ],
                  "searchable": True or False, # If true, custom attribute values are searchable by text queries in SearchService.Search. This field is ignored in a UserEvent. Only set if type text is set. Otherwise, a INVALID_ARGUMENT error is returned.
                  "text": [ # The textual values of this custom attribute. For example, `["yellow", "green"]` when the key is "color". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                    "A String",
                  ],
                },
              },
              "attributionToken": "A String", # Highly recommended for user events that are the result of PredictionService.Predict. This field enables accurate attribution of recommendation model performance. The value must be a valid PredictResponse.attribution_token for user events that are the result of PredictionService.Predict. The value must be a valid SearchResponse.attribution_token for user events that are the result of SearchService.Search. This token enables us to accurately attribute page view or purchase back to the event and the particular predict response containing this clicked/purchased product. If user clicks on product K in the recommendation results, pass PredictResponse.attribution_token as a URL parameter to product K's page. When recording events on product K's page, log the PredictResponse.attribution_token to this field.
              "cartId": "A String", # The ID or name of the associated shopping cart. This ID is used to associate multiple items added or present in the cart before purchase. This can only be set for `add-to-cart`, `purchase-complete`, or `shopping-cart-page-view` events.
              "completionDetail": { # Detailed completion information including completion attribution token and clicked completion info. # The main auto-completion details related to the event. This field should be set for `search` event when autocomplete function is enabled and the user clicks a suggestion for search.
                "completionAttributionToken": "A String", # Completion attribution token in CompleteQueryResponse.attribution_token.
                "selectedPosition": 42, # End user selected CompleteQueryResponse.CompletionResult.suggestion position, starting from 0.
                "selectedSuggestion": "A String", # End user selected CompleteQueryResponse.CompletionResult.suggestion.
              },
              "eventTime": "A String", # Only required for UserEventService.ImportUserEvents method. Timestamp of when the user event happened.
              "eventType": "A String", # Required. User event type. Allowed values are: * `add-to-cart`: Products being added to cart. * `category-page-view`: Special pages such as sale or promotion pages viewed. * `detail-page-view`: Products detail page viewed. * `home-page-view`: Homepage viewed. * `promotion-offered`: Promotion is offered to a user. * `promotion-not-offered`: Promotion is not offered to a user. * `purchase-complete`: User finishing a purchase. * `search`: Product search. * `shopping-cart-page-view`: User viewing a shopping cart.
              "experimentIds": [ # A list of identifiers for the independent experiment groups this user event belongs to. This is used to distinguish between user events associated with different experiment setups (e.g. using Retail API, using different recommendation models).
                "A String",
              ],
              "filter": "A String", # The filter syntax consists of an expression language for constructing a predicate from one or more fields of the products being filtered. See SearchRequest.filter for definition and syntax. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.
              "offset": 42, # An integer that specifies the current offset for pagination (the 0-indexed starting location, amongst the products deemed by the API as relevant). See SearchRequest.offset for definition. If this field is negative, an INVALID_ARGUMENT is returned. This can only be set for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
              "orderBy": "A String", # The order in which products are returned. See SearchRequest.order_by for definition and syntax. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This can only be set for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
              "pageCategories": [ # The categories associated with a category page. To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s). Category pages include special pages such as sales or promotions. For instance, a special sale page may have the category hierarchy: "pageCategories" : ["Sales > 2017 Black Friday Deals"]. Required for `category-page-view` events. At least one of search_query or page_categories is required for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
                "A String",
              ],
              "pageViewId": "A String", # A unique ID of a web page view. This should be kept the same for all user events triggered from the same pageview. For example, an item detail page view could trigger multiple events as the user is browsing the page. The `pageViewId` property should be kept the same for all these events so that they can be grouped together properly. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
              "productDetails": [ # The main product details related to the event. This field is required for the following event types: * `add-to-cart` * `detail-page-view` * `purchase-complete` * `search` In a `search` event, this field represents the products returned to the end user on the current page (the end user may have not finished browsing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new `search` event with different product_details is desired. The end user may have not finished browsing the whole page yet.
                { # Detailed product information associated with a user event.
                  "product": { # Product captures all metadata information of items to be recommended or searched. # Required. Product information. Required field(s): * Product.id Optional override field(s): * Product.price_info If any supported optional fields are provided, we will treat them as a full override when looking up product information from the catalog. Thus, it is important to ensure that the overriding fields are accurate and complete. All other product fields are ignored and instead populated via catalog lookup after event ingestion.
                    "attributes": { # Highly encouraged. Extra product attributes to be included. For example, for products, this could include the store name, vendor, style, color, etc. These are very strong signals for recommendation model, thus we highly recommend providing the attributes here. Features that can take on one of a limited number of possible values. Two types of features can be set are: Textual features. some examples would be the brand/maker of a product, or country of a customer. Numerical features. Some examples would be the height/weight of a product, or age of a customer. For example: `{ "vendor": {"text": ["vendor123", "vendor456"]}, "lengths_cm": {"numbers":[2.3, 15.4]}, "heights_cm": {"numbers":[8.1, 6.4]} }`. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * Max entries count: 200. * The key must be a UTF-8 encoded string with a length limit of 128 characters. * For indexable attribute, the key must match the pattern: `a-zA-Z0-9*`. For example, `key0LikeThis` or `KEY_1_LIKE_THIS`. * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * For number attributes, at most 400 values are allowed.
                      "a_key": { # A custom attribute that is not explicitly modeled in Product.
                        "indexable": True or False, # If true, custom attribute values are indexed, so that it can be filtered, faceted or boosted in SearchService.Search. This field is ignored in a UserEvent. See SearchRequest.filter, SearchRequest.facet_specs and SearchRequest.boost_spec for more details.
                        "numbers": [ # The numerical values of this custom attribute. For example, `[2.3, 15.4]` when the key is "lengths_cm". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                          3.14,
                        ],
                        "searchable": True or False, # If true, custom attribute values are searchable by text queries in SearchService.Search. This field is ignored in a UserEvent. Only set if type text is set. Otherwise, a INVALID_ARGUMENT error is returned.
                        "text": [ # The textual values of this custom attribute. For example, `["yellow", "green"]` when the key is "color". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                          "A String",
                        ],
                      },
                    },
                    "audience": { # An intended audience of the Product for whom it's sold. # The target group associated with a given audience (e.g. male, veterans, car owners, musicians, etc.) of the product.
                      "ageGroups": [ # The age groups of the audience. Strongly encouraged to use the standard values: "newborn" (up to 3 months old), "infant" (3–12 months old), "toddler" (1–5 years old), "kids" (5–13 years old), "adult" (typically teens or older). At most 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [age_group](https://support.google.com/merchants/answer/6324463). Schema.org property [Product.audience.suggestedMinAge](https://schema.org/suggestedMinAge) and [Product.audience.suggestedMaxAge](https://schema.org/suggestedMaxAge).
                        "A String",
                      ],
                      "genders": [ # The genders of the audience. Strongly encouraged to use the standard values: "male", "female", "unisex". At most 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [gender](https://support.google.com/merchants/answer/6324479). Schema.org property [Product.audience.suggestedGender](https://schema.org/suggestedGender).
                        "A String",
                      ],
                    },
                    "availability": "A String", # The online availability of the Product. Default to Availability.IN_STOCK. Corresponding properties: Google Merchant Center property [availability](https://support.google.com/merchants/answer/6324448). Schema.org property [Offer.availability](https://schema.org/availability).
                    "availableQuantity": 42, # The available quantity of the item.
                    "availableTime": "A String", # The timestamp when this Product becomes available for SearchService.Search.
                    "brands": [ # The brands of the product. A maximum of 30 brands are allowed. Each brand must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [brand](https://support.google.com/merchants/answer/6324351). Schema.org property [Product.brand](https://schema.org/brand).
                      "A String",
                    ],
                    "categories": [ # Product categories. This field is repeated for supporting one product belonging to several parallel categories. Strongly recommended using the full path for better search / recommendation quality. To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s). For example, if a shoes product belongs to both ["Shoes & Accessories" -> "Shoes"] and ["Sports & Fitness" -> "Athletic Clothing" -> "Shoes"], it could be represented as: "categories": [ "Shoes & Accessories > Shoes", "Sports & Fitness > Athletic Clothing > Shoes" ] Must be set for Type.PRIMARY Product otherwise an INVALID_ARGUMENT error is returned. At most 250 values are allowed per Product. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property google_product_category. Schema.org property [Product.category] (https://schema.org/category). [mc_google_product_category]: https://support.google.com/merchants/answer/6324436
                      "A String",
                    ],
                    "collectionMemberIds": [ # The id of the collection members when type is Type.COLLECTION. Should not set it for other types. A maximum of 1000 values are allowed. Otherwise, an INVALID_ARGUMENT error is return.
                      "A String",
                    ],
                    "colorInfo": { # The color information of a Product. # The color of the product. Corresponding properties: Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                      "colorFamilies": [ # The standard color families. Strongly recommended to use the following standard color groups: "Red", "Pink", "Orange", "Yellow", "Purple", "Green", "Cyan", "Blue", "Brown", "White", "Gray", "Black" and "Mixed". Normally it is expected to have only 1 color family. May consider using single "Mixed" instead of multiple values. A maximum of 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                        "A String",
                      ],
                      "colors": [ # The color display names, which may be different from standard color family names, such as the color aliases used in the website frontend. Normally it is expected to have only 1 color. May consider using single "Mixed" instead of multiple values. A maximum of 25 colors are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                        "A String",
                      ],
                    },
                    "conditions": [ # The condition of the product. Strongly encouraged to use the standard values: "new", "refurbished", "used". A maximum of 1 value is allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [condition](https://support.google.com/merchants/answer/6324469). Schema.org property [Offer.itemCondition](https://schema.org/itemCondition).
                      "A String",
                    ],
                    "description": "A String", # Product description. This field must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [description](https://support.google.com/merchants/answer/6324468). Schema.org property [Product.description](https://schema.org/description).
                    "expireTime": "A String", # The timestamp when this product becomes unavailable for SearchService.Search. If it is set, the Product is not available for SearchService.Search after expire_time. However, the product can still be retrieved by ProductService.GetProduct and ProductService.ListProducts. expire_time must be later than available_time and publish_time, otherwise an INVALID_ARGUMENT error is thrown. Corresponding properties: Google Merchant Center property [expiration_date](https://support.google.com/merchants/answer/6324499).
                    "fulfillmentInfo": [ # Fulfillment information, such as the store IDs for in-store pickup or region IDs for different shipping methods. All the elements must have distinct FulfillmentInfo.type. Otherwise, an INVALID_ARGUMENT error is returned.
                      { # Fulfillment information, such as the store IDs for in-store pickup or region IDs for different shipping methods.
                        "placeIds": [ # The IDs for this type, such as the store IDs for FulfillmentInfo.type.pickup-in-store or the region IDs for FulfillmentInfo.type.same-day-delivery. A maximum of 3000 values are allowed. Each value must be a string with a length limit of 30 characters, matching the pattern `[a-zA-Z0-9_-]+`, such as "store1" or "REGION-2". Otherwise, an INVALID_ARGUMENT error is returned.
                          "A String",
                        ],
                        "type": "A String", # The fulfillment type, including commonly used types (such as pickup in store and same day delivery), and custom types. Customers have to map custom types to their display names before rendering UI. Supported values: * "pickup-in-store" * "ship-to-store" * "same-day-delivery" * "next-day-delivery" * "custom-type-1" * "custom-type-2" * "custom-type-3" * "custom-type-4" * "custom-type-5" If this field is set to an invalid value other than these, an INVALID_ARGUMENT error is returned.
                      },
                    ],
                    "gtin": "A String", # The Global Trade Item Number (GTIN) of the product. This field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. This field must be a Unigram. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [gtin](https://support.google.com/merchants/answer/6324461). Schema.org property [Product.isbn](https://schema.org/isbn), [Product.gtin8](https://schema.org/gtin8), [Product.gtin12](https://schema.org/gtin12), [Product.gtin13](https://schema.org/gtin13), or [Product.gtin14](https://schema.org/gtin14). If the value is not a valid GTIN, an INVALID_ARGUMENT error is returned.
                    "id": "A String", # Immutable. Product identifier, which is the final component of name. For example, this field is "id_1", if name is `projects/*/locations/global/catalogs/default_catalog/branches/default_branch/products/id_1`. This field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [id](https://support.google.com/merchants/answer/6324405). Schema.org property [Product.sku](https://schema.org/sku).
                    "images": [ # Product images for the product.Highly recommended to put the main image to the first. A maximum of 300 images are allowed. Corresponding properties: Google Merchant Center property [image_link](https://support.google.com/merchants/answer/6324350). Schema.org property [Product.image](https://schema.org/image).
                      { # Product thumbnail/detail image.
                        "height": 42, # Height of the image in number of pixels. This field must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
                        "uri": "A String", # Required. URI of the image. This field must be a valid UTF-8 encoded URI with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [image_link](https://support.google.com/merchants/answer/6324350). Schema.org property [Product.image](https://schema.org/image).
                        "width": 42, # Width of the image in number of pixels. This field must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
                      },
                    ],
                    "languageCode": "A String", # Language of the title/description and other string attributes. Use language tags defined by [BCP 47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt). For product prediction, this field is ignored and the model automatically detects the text language. The Product can include text in different languages, but duplicating Products to provide text in multiple languages can result in degraded model performance. For product search this field is in use. It defaults to "en-US" if unset.
                    "materials": [ # The material of the product. For example, "leather", "wooden". A maximum of 20 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [material](https://support.google.com/merchants/answer/6324410). Schema.org property [Product.material](https://schema.org/material).
                      "A String",
                    ],
                    "name": "A String", # Immutable. Full resource name of the product, such as `projects/*/locations/global/catalogs/default_catalog/branches/default_branch/products/product_id`.
                    "patterns": [ # The pattern or graphic print of the product. For example, "striped", "polka dot", "paisley". A maximum of 20 values are allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [pattern](https://support.google.com/merchants/answer/6324483). Schema.org property [Product.pattern](https://schema.org/pattern).
                      "A String",
                    ],
                    "priceInfo": { # The price information of a Product. # Product price and cost information. Corresponding properties: Google Merchant Center property [price](https://support.google.com/merchants/answer/6324371).
                      "cost": 3.14, # The costs associated with the sale of a particular product. Used for gross profit reporting. * Profit = price - cost Google Merchant Center property [cost_of_goods_sold](https://support.google.com/merchants/answer/9017895).
                      "currencyCode": "A String", # The 3-letter currency code defined in [ISO 4217](https://www.iso.org/iso-4217-currency-codes.html). If this field is an unrecognizable currency code, an INVALID_ARGUMENT error is returned. The Product.Type.VARIANT Products with the same Product.primary_product_id must share the same currency_code. Otherwise, a FAILED_PRECONDITION error is returned.
                      "originalPrice": 3.14, # Price of the product without any discount. If zero, by default set to be the price.
                      "price": 3.14, # Price of the product. Google Merchant Center property [price](https://support.google.com/merchants/answer/6324371). Schema.org property [Offer.price](https://schema.org/price).
                      "priceEffectiveTime": "A String", # The timestamp when the price starts to be effective. This can be set as a future timestamp, and the price is only used for search after price_effective_time. If so, the original_price must be set and original_price is used before price_effective_time. Do not set if price is always effective because it will cause additional latency during search.
                      "priceExpireTime": "A String", # The timestamp when the price stops to be effective. The price is used for search before price_expire_time. If this field is set, the original_price must be set and original_price is used after price_expire_time. Do not set if price is always effective because it will cause additional latency during search.
                      "priceRange": { # The price range of all variant Product having the same Product.primary_product_id. # Output only. The price range of all the child Product.Type.VARIANT Products grouped together on the Product.Type.PRIMARY Product. Only populated for Product.Type.PRIMARY Products. Note: This field is OUTPUT_ONLY for ProductService.GetProduct. Do not set this field in API requests.
                        "originalPrice": { # A floating point interval. # The inclusive Product.pricing_info.original_price internal of all variant Product having the same Product.primary_product_id.
                          "exclusiveMaximum": 3.14, # Exclusive upper bound.
                          "exclusiveMinimum": 3.14, # Exclusive lower bound.
                          "maximum": 3.14, # Inclusive upper bound.
                          "minimum": 3.14, # Inclusive lower bound.
                        },
                        "price": { # A floating point interval. # The inclusive Product.pricing_info.price interval of all variant Product having the same Product.primary_product_id.
                          "exclusiveMaximum": 3.14, # Exclusive upper bound.
                          "exclusiveMinimum": 3.14, # Exclusive lower bound.
                          "maximum": 3.14, # Inclusive upper bound.
                          "minimum": 3.14, # Inclusive lower bound.
                        },
                      },
                    },
                    "primaryProductId": "A String", # Variant group identifier. Must be an id, with the same parent branch with this product. Otherwise, an error is thrown. For Type.PRIMARY Products, this field can only be empty or set to the same value as id. For VARIANT Products, this field cannot be empty. A maximum of 2,000 products are allowed to share the same Type.PRIMARY Product. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [item_group_id](https://support.google.com/merchants/answer/6324507). Schema.org property [Product.inProductGroupWithID](https://schema.org/inProductGroupWithID).
                    "promotions": [ # The promotions applied to the product. A maximum of 10 values are allowed per Product.
                      { # Promotion information.
                        "promotionId": "A String", # ID of the promotion. For example, "free gift". The value value must be a UTF-8 encoded string with a length limit of 128 characters, and match the pattern: `a-zA-Z*`. For example, id0LikeThis or ID_1_LIKE_THIS. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [promotion](https://support.google.com/merchants/answer/7050148).
                      },
                    ],
                    "publishTime": "A String", # The timestamp when the product is published by the retailer for the first time, which indicates the freshness of the products. Note that this field is different from available_time, given it purely describes product freshness regardless of when it is available on search and recommendation.
                    "rating": { # The rating of a Product. # The rating of this product.
                      "averageRating": 3.14, # The average rating of the Product. The rating is scaled at 1-5. Otherwise, an INVALID_ARGUMENT error is returned.
                      "ratingCount": 42, # The total number of ratings. This value is independent of the value of rating_histogram. This value must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
                      "ratingHistogram": [ # List of rating counts per rating value (index = rating - 1). The list is empty if there is no rating. If the list is non-empty, its size is always 5. Otherwise, an INVALID_ARGUMENT error is returned. For example, [41, 14, 13, 47, 303]. It means that the Product got 41 ratings with 1 star, 14 ratings with 2 star, and so on.
                        42,
                      ],
                    },
                    "retrievableFields": "A String", # Indicates which fields in the Products are returned in SearchResponse. Supported fields for all types: * audience * availability * brands * color_info * conditions * gtin * materials * name * patterns * price_info * rating * sizes * title * uri Supported fields only for Type.PRIMARY and Type.COLLECTION: * categories * description * images Supported fields only for Type.VARIANT: * Only the first image in images To mark attributes as retrievable, include paths of the form "attributes.key" where "key" is the key of a custom attribute, as specified in attributes. For Type.PRIMARY and Type.COLLECTION, the following fields are always returned in SearchResponse by default: * name For Type.VARIANT, the following fields are always returned in by default: * name * color_info Maximum number of paths is 30. Otherwise, an INVALID_ARGUMENT error is returned. Note: Returning more fields in SearchResponse may increase response payload size and serving latency.
                    "sizes": [ # The size of the product. To represent different size systems or size types, consider using this format: [[[size_system:]size_type:]size_value]. For example, in "US:MENS:M", "US" represents size system; "MENS" represents size type; "M" represents size value. In "GIRLS:27", size system is empty; "GIRLS" represents size type; "27" represents size value. In "32 inches", both size system and size type are empty, while size value is "32 inches". A maximum of 20 values are allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [size](https://support.google.com/merchants/answer/6324492), [size_type](https://support.google.com/merchants/answer/6324497), and [size_system](https://support.google.com/merchants/answer/6324502). Schema.org property [Product.size](https://schema.org/size).
                      "A String",
                    ],
                    "tags": [ # Custom tags associated with the product. At most 250 values are allowed per Product. This value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This tag can be used for filtering recommendation results by passing the tag as part of the PredictRequest.filter. Corresponding properties: Google Merchant Center property [custom_label_0–4](https://support.google.com/merchants/answer/6324473).
                      "A String",
                    ],
                    "title": "A String", # Required. Product title. This field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [title](https://support.google.com/merchants/answer/6324415). Schema.org property [Product.name](https://schema.org/name).
                    "ttl": "A String", # Input only. The TTL (time to live) of the product. If it is set, it must be a non-negative value, and expire_time is set as current timestamp plus ttl. The derived expire_time is returned in the output and ttl is left blank when retrieving the Product. If it is set, the product is not available for SearchService.Search after current timestamp plus ttl. However, the product can still be retrieved by ProductService.GetProduct and ProductService.ListProducts.
                    "type": "A String", # Immutable. The type of the product. Default to Catalog.product_level_config.ingestion_product_type if unset.
                    "uri": "A String", # Canonical URL directly linking to the product detail page. It is strongly recommended to provide a valid uri for the product, otherwise the service performance could be significantly degraded. This field must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [link](https://support.google.com/merchants/answer/6324416). Schema.org property [Offer.url](https://schema.org/url).
                    "variants": [ # Output only. Product variants grouped together on primary product which share similar product attributes. It's automatically grouped by primary_product_id for all the product variants. Only populated for Type.PRIMARY Products. Note: This field is OUTPUT_ONLY for ProductService.GetProduct. Do not set this field in API requests.
                      # Object with schema name: GoogleCloudRetailV2Product
                    ],
                  },
                  "quantity": 42, # Quantity of the product associated with the user event. For example, this field will be 2 if two products are added to the shopping cart for `purchase-complete` event. Required for `add-to-cart` and `purchase-complete` event types.
                },
              ],
              "purchaseTransaction": { # A transaction represents the entire purchase transaction. # A transaction represents the entire purchase transaction. Required for `purchase-complete` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
                "cost": 3.14, # All the costs associated with the products. These can be manufacturing costs, shipping expenses not borne by the end user, or any other costs, such that: * Profit = revenue - tax - cost
                "currencyCode": "A String", # Required. Currency code. Use three-character ISO-4217 code.
                "id": "A String", # The transaction ID with a length limit of 128 characters.
                "revenue": 3.14, # Required. Total non-zero revenue or grand total associated with the transaction. This value include shipping, tax, or other adjustments to total revenue that you want to include as part of your revenue calculations.
                "tax": 3.14, # All the taxes associated with the transaction.
              },
              "referrerUri": "A String", # The referrer URL of the current page. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
              "searchQuery": "A String", # The user's search query. See SearchRequest.query for definition. The value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. At least one of search_query or page_categories is required for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
              "sessionId": "A String", # A unique identifier for tracking a visitor session with a length limit of 128 bytes. A session is an aggregation of an end user behavior in a time span. A general guideline to populate the sesion_id: 1. If user has no activity for 30 min, a new session_id should be assigned. 2. The session_id should be unique across users, suggest use uuid or add visitor_id as prefix.
              "uri": "A String", # Complete URL (window.location.href) of the user's current page. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically. Maximum length 5,000 characters.
              "userInfo": { # Information of an end user. # User information.
                "directUserRequest": True or False, # True if the request is made directly from the end user, in which case the ip_address and user_agent can be populated from the HTTP request. This flag should be set only if the API request is made directly from the end user such as a mobile app (and not if a gateway or a server is processing and pushing the user events). This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent.
                "ipAddress": "A String", # The end user's IP address. Required for getting SearchResponse.sponsored_results. This field is used to extract location information for personalization. This field must be either an IPv4 address (e.g. "104.133.9.80") or an IPv6 address (e.g. "2001:0db8:85a3:0000:0000:8a2e:0370:7334"). Otherwise, an INVALID_ARGUMENT error is returned. This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent or if direct_user_request is set.
                "userAgent": "A String", # User agent as included in the HTTP header. Required for getting SearchResponse.sponsored_results. The field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This should not be set when using the client side event reporting with GTM or JavaScript tag in UserEventService.CollectUserEvent or if direct_user_request is set.
                "userId": "A String", # Highly recommended for logged-in users. Unique identifier for logged-in user, such as a user name. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.
              },
              "visitorId": "A String", # Required. A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor log in/out of the website. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. The field should not contain PII or user-data. We recommend to use Google Analystics [Client ID](https://developers.google.com/analytics/devguides/collection/analyticsjs/field-reference#clientId) for this field.
            },
          ],
        },
      },
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a network API call.
      "done": True or False, # If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
      "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # The error result of the operation in case of failure or cancellation.
        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
        "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
          {
            "a_key": "", # Properties of the object. Contains field @type with type URL.
          },
        ],
        "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
      },
      "metadata": { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the `name` should be a resource name ending with `operations/{unique_id}`.
      "response": { # The normal response of the operation in case of success. If the original method returns no data on success, such as `Delete`, the response is `google.protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`, the response should be the resource. For other methods, the response should have the type `XxxResponse`, where `Xxx` is the original method name. For example, if the original method name is `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
    }

`purge(parent, body=None, x__xgafv=None)`

    Deletes permanently all user events specified by the filter provided. Depending on the number of events specified by the filter, this operation could take hours or days to complete. To test a filter, use the list command first.

    Args:
      parent: string, Required. The resource name of the catalog under which the events are created. The format is `projects/${projectId}/locations/global/catalogs/${catalogId}` (required)
      body: object, The request body.
        The object takes the form of:

    { # Request message for PurgeUserEvents method.
      "filter": "A String", # Required. The filter string to specify the events to be deleted with a length limit of 5,000 characters. Empty string filter is not allowed. The eligible fields for filtering are: * `eventType`: Double quoted UserEvent.event_type string. * `eventTime`: in ISO 8601 "zulu" format. * `visitorId`: Double quoted string. Specifying this will delete all events associated with a visitor. * `userId`: Double quoted string. Specifying this will delete all events associated with a user. Examples: * Deleting all events in a time range: `eventTime > "2012-04-23T18:25:43.511Z" eventTime < "2012-04-23T18:30:43.511Z"` * Deleting specific eventType in time range: `eventTime > "2012-04-23T18:25:43.511Z" eventType = "detail-page-view"` * Deleting all events for a specific visitor: `visitorId = "visitor1024"` The filtering fields are assumed to have an implicit AND.
      "force": True or False, # Actually perform the purge. If `force` is set to false, the method will return the expected purge count without deleting any user events.
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a network API call.
      "done": True or False, # If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
      "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # The error result of the operation in case of failure or cancellation.
        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
        "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
          {
            "a_key": "", # Properties of the object. Contains field @type with type URL.
          },
        ],
        "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
      },
      "metadata": { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the `name` should be a resource name ending with `operations/{unique_id}`.
      "response": { # The normal response of the operation in case of success. If the original method returns no data on success, such as `Delete`, the response is `google.protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`, the response should be the resource. For other methods, the response should have the type `XxxResponse`, where `Xxx` is the original method name. For example, if the original method name is `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
    }

`rejoin(parent, body=None, x__xgafv=None)`

    Triggers a user event rejoin operation with latest product catalog. Events will not be annotated with detailed product information if product is missing from the catalog at the time the user event is ingested, and these events are stored as unjoined events with a limited usage on training and serving. This API can be used to trigger a 'join' operation on specified events with latest version of product catalog. It can also be used to correct events joined with wrong product catalog.

    Args:
      parent: string, Required. The parent catalog resource name, such as `projects/1234/locations/global/catalogs/default_catalog`. (required)
      body: object, The request body.
        The object takes the form of:

    { # Request message for RejoinUserEvents method.
      "userEventRejoinScope": "A String", # The type of the user event rejoin to define the scope and range of the user events to be rejoined with the latest product catalog. Defaults to USER_EVENT_REJOIN_SCOPE_UNSPECIFIED if this field is not set, or set to an invalid integer value.
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a network API call.
      "done": True or False, # If the value is `false`, it means the operation is still in progress. If `true`, the operation is completed, and either `error` or `response` is available.
      "error": { # The `Status` type defines a logical error model that is suitable for different programming environments, including REST APIs and RPC APIs. It is used by [gRPC](https://github.com/grpc). Each `Status` message contains three pieces of data: error code, error message, and error details. You can find out more about this error model and how to work with it in the [API Design Guide](https://cloud.google.com/apis/design/errors). # The error result of the operation in case of failure or cancellation.
        "code": 42, # The status code, which should be an enum value of google.rpc.Code.
        "details": [ # A list of messages that carry the error details. There is a common set of message types for APIs to use.
          {
            "a_key": "", # Properties of the object. Contains field @type with type URL.
          },
        ],
        "message": "A String", # A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the google.rpc.Status.details field, or localized by the client.
      },
      "metadata": { # Service-specific metadata associated with the operation. It typically contains progress information and common metadata such as create time. Some services might not provide such metadata. Any method that returns a long-running operation should document the metadata type, if any.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # The server-assigned name, which is only unique within the same service that originally returns it. If you use the default HTTP mapping, the `name` should be a resource name ending with `operations/{unique_id}`.
      "response": { # The normal response of the operation in case of success. If the original method returns no data on success, such as `Delete`, the response is `google.protobuf.Empty`. If the original method is standard `Get`/`Create`/`Update`, the response should be the resource. For other methods, the response should have the type `XxxResponse`, where `Xxx` is the original method name. For example, if the original method name is `TakeSnapshot()`, the inferred response type is `TakeSnapshotResponse`.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
    }

`write(parent, body=None, x__xgafv=None)`

    Writes a single user event.

    Args:
      parent: string, Required. The parent catalog resource name, such as `projects/1234/locations/global/catalogs/default_catalog`. (required)
      body: object, The request body.
        The object takes the form of:

    { # UserEvent captures all metadata information Retail API needs to know about how end users interact with customers' website.
      "attributes": { # Extra user event features to include in the recommendation model. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * The key must be a UTF-8 encoded string with a length limit of 5,000 characters. * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * For number attributes, at most 400 values are allowed. For product recommendation, an example of extra user information is traffic_channel, i.e. how user arrives at the site. Users can arrive at the site by coming to the site directly, or coming through Google search, and etc.
        "a_key": { # A custom attribute that is not explicitly modeled in Product.
          "indexable": True or False, # If true, custom attribute values are indexed, so that it can be filtered, faceted or boosted in SearchService.Search. This field is ignored in a UserEvent. See SearchRequest.filter, SearchRequest.facet_specs and SearchRequest.boost_spec for more details.
          "numbers": [ # The numerical values of this custom attribute. For example, `[2.3, 15.4]` when the key is "lengths_cm". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
            3.14,
          ],
          "searchable": True or False, # If true, custom attribute values are searchable by text queries in SearchService.Search. This field is ignored in a UserEvent. Only set if type text is set. Otherwise, a INVALID_ARGUMENT error is returned.
          "text": [ # The textual values of this custom attribute. For example, `["yellow", "green"]` when the key is "color". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
            "A String",
          ],
        },
      },
      "attributionToken": "A String", # Highly recommended for user events that are the result of PredictionService.Predict. This field enables accurate attribution of recommendation model performance. The value must be a valid PredictResponse.attribution_token for user events that are the result of PredictionService.Predict. The value must be a valid SearchResponse.attribution_token for user events that are the result of SearchService.Search. This token enables us to accurately attribute page view or purchase back to the event and the particular predict response containing this clicked/purchased product. If user clicks on product K in the recommendation results, pass PredictResponse.attribution_token as a URL parameter to product K's page. When recording events on product K's page, log the PredictResponse.attribution_token to this field.
      "cartId": "A String", # The ID or name of the associated shopping cart. This ID is used to associate multiple items added or present in the cart before purchase. This can only be set for `add-to-cart`, `purchase-complete`, or `shopping-cart-page-view` events.
      "completionDetail": { # Detailed completion information including completion attribution token and clicked completion info. # The main auto-completion details related to the event. This field should be set for `search` event when autocomplete function is enabled and the user clicks a suggestion for search.
        "completionAttributionToken": "A String", # Completion attribution token in CompleteQueryResponse.attribution_token.
        "selectedPosition": 42, # End user selected CompleteQueryResponse.CompletionResult.suggestion position, starting from 0.
        "selectedSuggestion": "A String", # End user selected CompleteQueryResponse.CompletionResult.suggestion.
      },
      "eventTime": "A String", # Only required for UserEventService.ImportUserEvents method. Timestamp of when the user event happened.
      "eventType": "A String", # Required. User event type. Allowed values are: * `add-to-cart`: Products being added to cart. * `category-page-view`: Special pages such as sale or promotion pages viewed. * `detail-page-view`: Products detail page viewed. * `home-page-view`: Homepage viewed. * `promotion-offered`: Promotion is offered to a user. * `promotion-not-offered`: Promotion is not offered to a user. * `purchase-complete`: User finishing a purchase. * `search`: Product search. * `shopping-cart-page-view`: User viewing a shopping cart.
      "experimentIds": [ # A list of identifiers for the independent experiment groups this user event belongs to. This is used to distinguish between user events associated with different experiment setups (e.g. using Retail API, using different recommendation models).
        "A String",
      ],
      "filter": "A String", # The filter syntax consists of an expression language for constructing a predicate from one or more fields of the products being filtered. See SearchRequest.filter for definition and syntax. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.
      "offset": 42, # An integer that specifies the current offset for pagination (the 0-indexed starting location, amongst the products deemed by the API as relevant). See SearchRequest.offset for definition. If this field is negative, an INVALID_ARGUMENT is returned. This can only be set for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
      "orderBy": "A String", # The order in which products are returned. See SearchRequest.order_by for definition and syntax. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This can only be set for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
      "pageCategories": [ # The categories associated with a category page. To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s). Category pages include special pages such as sales or promotions. For instance, a special sale page may have the category hierarchy: "pageCategories" : ["Sales > 2017 Black Friday Deals"]. Required for `category-page-view` events. At least one of search_query or page_categories is required for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
        "A String",
      ],
      "pageViewId": "A String", # A unique ID of a web page view. This should be kept the same for all user events triggered from the same pageview. For example, an item detail page view could trigger multiple events as the user is browsing the page. The `pageViewId` property should be kept the same for all these events so that they can be grouped together properly. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
      "productDetails": [ # The main product details related to the event. This field is required for the following event types: * `add-to-cart` * `detail-page-view` * `purchase-complete` * `search` In a `search` event, this field represents the products returned to the end user on the current page (the end user may have not finished browsing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new `search` event with different product_details is desired. The end user may have not finished browsing the whole page yet.
        { # Detailed product information associated with a user event.
          "product": { # Product captures all metadata information of items to be recommended or searched. # Required. Product information. Required field(s): * Product.id Optional override field(s): * Product.price_info If any supported optional fields are provided, we will treat them as a full override when looking up product information from the catalog. Thus, it is important to ensure that the overriding fields are accurate and complete. All other product fields are ignored and instead populated via catalog lookup after event ingestion.
            "attributes": { # Highly encouraged. Extra product attributes to be included. For example, for products, this could include the store name, vendor, style, color, etc. These are very strong signals for recommendation model, thus we highly recommend providing the attributes here. Features that can take on one of a limited number of possible values. Two types of features can be set are: Textual features. some examples would be the brand/maker of a product, or country of a customer. Numerical features. Some examples would be the height/weight of a product, or age of a customer. For example: `{ "vendor": {"text": ["vendor123", "vendor456"]}, "lengths_cm": {"numbers":[2.3, 15.4]}, "heights_cm": {"numbers":[8.1, 6.4]} }`. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * Max entries count: 200. * The key must be a UTF-8 encoded string with a length limit of 128 characters. * For indexable attribute, the key must match the pattern: `a-zA-Z0-9*`. For example, `key0LikeThis` or `KEY_1_LIKE_THIS`. * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * For number attributes, at most 400 values are allowed.
              "a_key": { # A custom attribute that is not explicitly modeled in Product.
                "indexable": True or False, # If true, custom attribute values are indexed, so that it can be filtered, faceted or boosted in SearchService.Search. This field is ignored in a UserEvent. See SearchRequest.filter, SearchRequest.facet_specs and SearchRequest.boost_spec for more details.
                "numbers": [ # The numerical values of this custom attribute. For example, `[2.3, 15.4]` when the key is "lengths_cm". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                  3.14,
                ],
                "searchable": True or False, # If true, custom attribute values are searchable by text queries in SearchService.Search. This field is ignored in a UserEvent. Only set if type text is set. Otherwise, a INVALID_ARGUMENT error is returned.
                "text": [ # The textual values of this custom attribute. For example, `["yellow", "green"]` when the key is "color". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                  "A String",
                ],
              },
            },
            "audience": { # An intended audience of the Product for whom it's sold. # The target group associated with a given audience (e.g. male, veterans, car owners, musicians, etc.) of the product.
              "ageGroups": [ # The age groups of the audience. Strongly encouraged to use the standard values: "newborn" (up to 3 months old), "infant" (3–12 months old), "toddler" (1–5 years old), "kids" (5–13 years old), "adult" (typically teens or older). At most 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [age_group](https://support.google.com/merchants/answer/6324463). Schema.org property [Product.audience.suggestedMinAge](https://schema.org/suggestedMinAge) and [Product.audience.suggestedMaxAge](https://schema.org/suggestedMaxAge).
                "A String",
              ],
              "genders": [ # The genders of the audience. Strongly encouraged to use the standard values: "male", "female", "unisex". At most 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [gender](https://support.google.com/merchants/answer/6324479). Schema.org property [Product.audience.suggestedGender](https://schema.org/suggestedGender).
                "A String",
              ],
            },
            "availability": "A String", # The online availability of the Product. Default to Availability.IN_STOCK. Corresponding properties: Google Merchant Center property [availability](https://support.google.com/merchants/answer/6324448). Schema.org property [Offer.availability](https://schema.org/availability).
            "availableQuantity": 42, # The available quantity of the item.
            "availableTime": "A String", # The timestamp when this Product becomes available for SearchService.Search.
            "brands": [ # The brands of the product. A maximum of 30 brands are allowed. Each brand must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [brand](https://support.google.com/merchants/answer/6324351). Schema.org property [Product.brand](https://schema.org/brand).
              "A String",
            ],
            "categories": [ # Product categories. This field is repeated for supporting one product belonging to several parallel categories. Strongly recommended using the full path for better search / recommendation quality. To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s). For example, if a shoes product belongs to both ["Shoes & Accessories" -> "Shoes"] and ["Sports & Fitness" -> "Athletic Clothing" -> "Shoes"], it could be represented as: "categories": [ "Shoes & Accessories > Shoes", "Sports & Fitness > Athletic Clothing > Shoes" ] Must be set for Type.PRIMARY Product otherwise an INVALID_ARGUMENT error is returned. At most 250 values are allowed per Product. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property google_product_category. Schema.org property [Product.category] (https://schema.org/category). [mc_google_product_category]: https://support.google.com/merchants/answer/6324436
              "A String",
            ],
            "collectionMemberIds": [ # The id of the collection members when type is Type.COLLECTION. Should not set it for other types. A maximum of 1000 values are allowed. Otherwise, an INVALID_ARGUMENT error is return.
              "A String",
            ],
            "colorInfo": { # The color information of a Product. # The color of the product. Corresponding properties: Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
              "colorFamilies": [ # The standard color families. Strongly recommended to use the following standard color groups: "Red", "Pink", "Orange", "Yellow", "Purple", "Green", "Cyan", "Blue", "Brown", "White", "Gray", "Black" and "Mixed". Normally it is expected to have only 1 color family. May consider using single "Mixed" instead of multiple values. A maximum of 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                "A String",
              ],
              "colors": [ # The color display names, which may be different from standard color family names, such as the color aliases used in the website frontend. Normally it is expected to have only 1 color. May consider using single "Mixed" instead of multiple values. A maximum of 25 colors are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                "A String",
              ],
            },
            "conditions": [ # The condition of the product. Strongly encouraged to use the standard values: "new", "refurbished", "used". A maximum of 1 value is allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [condition](https://support.google.com/merchants/answer/6324469). Schema.org property [Offer.itemCondition](https://schema.org/itemCondition).
              "A String",
            ],
            "description": "A String", # Product description. This field must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [description](https://support.google.com/merchants/answer/6324468). Schema.org property [Product.description](https://schema.org/description).
            "expireTime": "A String", # The timestamp when this product becomes unavailable for SearchService.Search. If it is set, the Product is not available for SearchService.Search after expire_time. However, the product can still be retrieved by ProductService.GetProduct and ProductService.ListProducts. expire_time must be later than available_time and publish_time, otherwise an INVALID_ARGUMENT error is thrown. Corresponding properties: Google Merchant Center property [expiration_date](https://support.google.com/merchants/answer/6324499).
            "fulfillmentInfo": [ # Fulfillment information, such as the store IDs for in-store pickup or region IDs for different shipping methods. All the elements must have distinct FulfillmentInfo.type. Otherwise, an INVALID_ARGUMENT error is returned.
              { # Fulfillment information, such as the store IDs for in-store pickup or region IDs for different shipping methods.
                "placeIds": [ # The IDs for this type, such as the store IDs for FulfillmentInfo.type.pickup-in-store or the region IDs for FulfillmentInfo.type.same-day-delivery. A maximum of 3000 values are allowed. Each value must be a string with a length limit of 30 characters, matching the pattern `[a-zA-Z0-9_-]+`, such as "store1" or "REGION-2". Otherwise, an INVALID_ARGUMENT error is returned.
                  "A String",
                ],
                "type": "A String", # The fulfillment type, including commonly used types (such as pickup in store and same day delivery), and custom types. Customers have to map custom types to their display names before rendering UI. Supported values: * "pickup-in-store" * "ship-to-store" * "same-day-delivery" * "next-day-delivery" * "custom-type-1" * "custom-type-2" * "custom-type-3" * "custom-type-4" * "custom-type-5" If this field is set to an invalid value other than these, an INVALID_ARGUMENT error is returned.
              },
            ],
            "gtin": "A String", # The Global Trade Item Number (GTIN) of the product. This field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. This field must be a Unigram. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [gtin](https://support.google.com/merchants/answer/6324461). Schema.org property [Product.isbn](https://schema.org/isbn), [Product.gtin8](https://schema.org/gtin8), [Product.gtin12](https://schema.org/gtin12), [Product.gtin13](https://schema.org/gtin13), or [Product.gtin14](https://schema.org/gtin14). If the value is not a valid GTIN, an INVALID_ARGUMENT error is returned.
            "id": "A String", # Immutable. Product identifier, which is the final component of name. For example, this field is "id_1", if name is `projects/*/locations/global/catalogs/default_catalog/branches/default_branch/products/id_1`. This field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [id](https://support.google.com/merchants/answer/6324405). Schema.org property [Product.sku](https://schema.org/sku).
            "images": [ # Product images for the product.Highly recommended to put the main image to the first. A maximum of 300 images are allowed. Corresponding properties: Google Merchant Center property [image_link](https://support.google.com/merchants/answer/6324350). Schema.org property [Product.image](https://schema.org/image).
              { # Product thumbnail/detail image.
                "height": 42, # Height of the image in number of pixels. This field must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
                "uri": "A String", # Required. URI of the image. This field must be a valid UTF-8 encoded URI with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [image_link](https://support.google.com/merchants/answer/6324350). Schema.org property [Product.image](https://schema.org/image).
                "width": 42, # Width of the image in number of pixels. This field must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
              },
            ],
            "languageCode": "A String", # Language of the title/description and other string attributes. Use language tags defined by [BCP 47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt). For product prediction, this field is ignored and the model automatically detects the text language. The Product can include text in different languages, but duplicating Products to provide text in multiple languages can result in degraded model performance. For product search this field is in use. It defaults to "en-US" if unset.
            "materials": [ # The material of the product. For example, "leather", "wooden". A maximum of 20 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [material](https://support.google.com/merchants/answer/6324410). Schema.org property [Product.material](https://schema.org/material).
              "A String",
            ],
            "name": "A String", # Immutable. Full resource name of the product, such as `projects/*/locations/global/catalogs/default_catalog/branches/default_branch/products/product_id`.
            "patterns": [ # The pattern or graphic print of the product. For example, "striped", "polka dot", "paisley". A maximum of 20 values are allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [pattern](https://support.google.com/merchants/answer/6324483). Schema.org property [Product.pattern](https://schema.org/pattern).
              "A String",
            ],
            "priceInfo": { # The price information of a Product. # Product price and cost information. Corresponding properties: Google Merchant Center property [price](https://support.google.com/merchants/answer/6324371).
              "cost": 3.14, # The costs associated with the sale of a particular product. Used for gross profit reporting. * Profit = price - cost Google Merchant Center property [cost_of_goods_sold](https://support.google.com/merchants/answer/9017895).
              "currencyCode": "A String", # The 3-letter currency code defined in [ISO 4217](https://www.iso.org/iso-4217-currency-codes.html). If this field is an unrecognizable currency code, an INVALID_ARGUMENT error is returned. The Product.Type.VARIANT Products with the same Product.primary_product_id must share the same currency_code. Otherwise, a FAILED_PRECONDITION error is returned.
              "originalPrice": 3.14, # Price of the product without any discount. If zero, by default set to be the price.
              "price": 3.14, # Price of the product. Google Merchant Center property [price](https://support.google.com/merchants/answer/6324371). Schema.org property [Offer.price](https://schema.org/price).
              "priceEffectiveTime": "A String", # The timestamp when the price starts to be effective. This can be set as a future timestamp, and the price is only used for search after price_effective_time. If so, the original_price must be set and original_price is used before price_effective_time. Do not set if price is always effective because it will cause additional latency during search.
              "priceExpireTime": "A String", # The timestamp when the price stops to be effective. The price is used for search before price_expire_time. If this field is set, the original_price must be set and original_price is used after price_expire_time. Do not set if price is always effective because it will cause additional latency during search.
              "priceRange": { # The price range of all variant Product having the same Product.primary_product_id. # Output only. The price range of all the child Product.Type.VARIANT Products grouped together on the Product.Type.PRIMARY Product. Only populated for Product.Type.PRIMARY Products. Note: This field is OUTPUT_ONLY for ProductService.GetProduct. Do not set this field in API requests.
                "originalPrice": { # A floating point interval. # The inclusive Product.pricing_info.original_price internal of all variant Product having the same Product.primary_product_id.
                  "exclusiveMaximum": 3.14, # Exclusive upper bound.
                  "exclusiveMinimum": 3.14, # Exclusive lower bound.
                  "maximum": 3.14, # Inclusive upper bound.
                  "minimum": 3.14, # Inclusive lower bound.
                },
                "price": { # A floating point interval. # The inclusive Product.pricing_info.price interval of all variant Product having the same Product.primary_product_id.
                  "exclusiveMaximum": 3.14, # Exclusive upper bound.
                  "exclusiveMinimum": 3.14, # Exclusive lower bound.
                  "maximum": 3.14, # Inclusive upper bound.
                  "minimum": 3.14, # Inclusive lower bound.
                },
              },
            },
            "primaryProductId": "A String", # Variant group identifier. Must be an id, with the same parent branch with this product. Otherwise, an error is thrown. For Type.PRIMARY Products, this field can only be empty or set to the same value as id. For VARIANT Products, this field cannot be empty. A maximum of 2,000 products are allowed to share the same Type.PRIMARY Product. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [item_group_id](https://support.google.com/merchants/answer/6324507). Schema.org property [Product.inProductGroupWithID](https://schema.org/inProductGroupWithID).
            "promotions": [ # The promotions applied to the product. A maximum of 10 values are allowed per Product.
              { # Promotion information.
                "promotionId": "A String", # ID of the promotion. For example, "free gift". The value value must be a UTF-8 encoded string with a length limit of 128 characters, and match the pattern: `a-zA-Z*`. For example, id0LikeThis or ID_1_LIKE_THIS. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [promotion](https://support.google.com/merchants/answer/7050148).
              },
            ],
            "publishTime": "A String", # The timestamp when the product is published by the retailer for the first time, which indicates the freshness of the products. Note that this field is different from available_time, given it purely describes product freshness regardless of when it is available on search and recommendation.
            "rating": { # The rating of a Product. # The rating of this product.
              "averageRating": 3.14, # The average rating of the Product. The rating is scaled at 1-5. Otherwise, an INVALID_ARGUMENT error is returned.
              "ratingCount": 42, # The total number of ratings. This value is independent of the value of rating_histogram. This value must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
              "ratingHistogram": [ # List of rating counts per rating value (index = rating - 1). The list is empty if there is no rating. If the list is non-empty, its size is always 5. Otherwise, an INVALID_ARGUMENT error is returned. For example, [41, 14, 13, 47, 303]. It means that the Product got 41 ratings with 1 star, 14 ratings with 2 star, and so on.
                42,
              ],
            },
            "retrievableFields": "A String", # Indicates which fields in the Products are returned in SearchResponse. Supported fields for all types: * audience * availability * brands * color_info * conditions * gtin * materials * name * patterns * price_info * rating * sizes * title * uri Supported fields only for Type.PRIMARY and Type.COLLECTION: * categories * description * images Supported fields only for Type.VARIANT: * Only the first image in images To mark attributes as retrievable, include paths of the form "attributes.key" where "key" is the key of a custom attribute, as specified in attributes. For Type.PRIMARY and Type.COLLECTION, the following fields are always returned in SearchResponse by default: * name For Type.VARIANT, the following fields are always returned in by default: * name * color_info Maximum number of paths is 30. Otherwise, an INVALID_ARGUMENT error is returned. Note: Returning more fields in SearchResponse may increase response payload size and serving latency.
            "sizes": [ # The size of the product. To represent different size systems or size types, consider using this format: [[[size_system:]size_type:]size_value]. For example, in "US:MENS:M", "US" represents size system; "MENS" represents size type; "M" represents size value. In "GIRLS:27", size system is empty; "GIRLS" represents size type; "27" represents size value. In "32 inches", both size system and size type are empty, while size value is "32 inches". A maximum of 20 values are allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [size](https://support.google.com/merchants/answer/6324492), [size_type](https://support.google.com/merchants/answer/6324497), and [size_system](https://support.google.com/merchants/answer/6324502). Schema.org property [Product.size](https://schema.org/size).
              "A String",
            ],
            "tags": [ # Custom tags associated with the product. At most 250 values are allowed per Product. This value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This tag can be used for filtering recommendation results by passing the tag as part of the PredictRequest.filter. Corresponding properties: Google Merchant Center property [custom_label_0–4](https://support.google.com/merchants/answer/6324473).
              "A String",
            ],
            "title": "A String", # Required. Product title. This field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [title](https://support.google.com/merchants/answer/6324415). Schema.org property [Product.name](https://schema.org/name).
            "ttl": "A String", # Input only. The TTL (time to live) of the product. If it is set, it must be a non-negative value, and expire_time is set as current timestamp plus ttl. The derived expire_time is returned in the output and ttl is left blank when retrieving the Product. If it is set, the product is not available for SearchService.Search after current timestamp plus ttl. However, the product can still be retrieved by ProductService.GetProduct and ProductService.ListProducts.
            "type": "A String", # Immutable. The type of the product. Default to Catalog.product_level_config.ingestion_product_type if unset.
            "uri": "A String", # Canonical URL directly linking to the product detail page. It is strongly recommended to provide a valid uri for the product, otherwise the service performance could be significantly degraded. This field must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [link](https://support.google.com/merchants/answer/6324416). Schema.org property [Offer.url](https://schema.org/url).
            "variants": [ # Output only. Product variants grouped together on primary product which share similar product attributes. It's automatically grouped by primary_product_id for all the product variants. Only populated for Type.PRIMARY Products. Note: This field is OUTPUT_ONLY for ProductService.GetProduct. Do not set this field in API requests.
              # Object with schema name: GoogleCloudRetailV2Product
            ],
          },
          "quantity": 42, # Quantity of the product associated with the user event. For example, this field will be 2 if two products are added to the shopping cart for `purchase-complete` event. Required for `add-to-cart` and `purchase-complete` event types.
        },
      ],
      "purchaseTransaction": { # A transaction represents the entire purchase transaction. # A transaction represents the entire purchase transaction. Required for `purchase-complete` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
        "cost": 3.14, # All the costs associated with the products. These can be manufacturing costs, shipping expenses not borne by the end user, or any other costs, such that: * Profit = revenue - tax - cost
        "currencyCode": "A String", # Required. Currency code. Use three-character ISO-4217 code.
        "id": "A String", # The transaction ID with a length limit of 128 characters.
        "revenue": 3.14, # Required. Total non-zero revenue or grand total associated with the transaction. This value include shipping, tax, or other adjustments to total revenue that you want to include as part of your revenue calculations.
        "tax": 3.14, # All the taxes associated with the transaction.
      },
      "referrerUri": "A String", # The referrer URL of the current page. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
      "searchQuery": "A String", # The user's search query. See SearchRequest.query for definition. The value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. At least one of search_query or page_categories is required for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
      "sessionId": "A String", # A unique identifier for tracking a visitor session with a length limit of 128 bytes. A session is an aggregation of an end user behavior in a time span. A general guideline to populate the sesion_id: 1. If user has no activity for 30 min, a new session_id should be assigned. 2. The session_id should be unique across users, suggest use uuid or add visitor_id as prefix.
      "uri": "A String", # Complete URL (window.location.href) of the user's current page. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically. Maximum length 5,000 characters.
      "userInfo": { # Information of an end user. # User information.
        "directUserRequest": True or False, # True if the request is made directly from the end user, in which case the ip_address and user_agent can be populated from the HTTP request. This flag should be set only if the API request is made directly from the end user such as a mobile app (and not if a gateway or a server is processing and pushing the user events). This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent.
        "ipAddress": "A String", # The end user's IP address. Required for getting SearchResponse.sponsored_results. This field is used to extract location information for personalization. This field must be either an IPv4 address (e.g. "104.133.9.80") or an IPv6 address (e.g. "2001:0db8:85a3:0000:0000:8a2e:0370:7334"). Otherwise, an INVALID_ARGUMENT error is returned. This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent or if direct_user_request is set.
        "userAgent": "A String", # User agent as included in the HTTP header. Required for getting SearchResponse.sponsored_results. The field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This should not be set when using the client side event reporting with GTM or JavaScript tag in UserEventService.CollectUserEvent or if direct_user_request is set.
        "userId": "A String", # Highly recommended for logged-in users. Unique identifier for logged-in user, such as a user name. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.
      },
      "visitorId": "A String", # Required. A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor log in/out of the website. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. The field should not contain PII or user-data. We recommend to use Google Analystics [Client ID](https://developers.google.com/analytics/devguides/collection/analyticsjs/field-reference#clientId) for this field.
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # UserEvent captures all metadata information Retail API needs to know about how end users interact with customers' website.
      "attributes": { # Extra user event features to include in the recommendation model. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * The key must be a UTF-8 encoded string with a length limit of 5,000 characters. * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * For number attributes, at most 400 values are allowed. For product recommendation, an example of extra user information is traffic_channel, i.e. how user arrives at the site. Users can arrive at the site by coming to the site directly, or coming through Google search, and etc.
        "a_key": { # A custom attribute that is not explicitly modeled in Product.
          "indexable": True or False, # If true, custom attribute values are indexed, so that it can be filtered, faceted or boosted in SearchService.Search. This field is ignored in a UserEvent. See SearchRequest.filter, SearchRequest.facet_specs and SearchRequest.boost_spec for more details.
          "numbers": [ # The numerical values of this custom attribute. For example, `[2.3, 15.4]` when the key is "lengths_cm". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
            3.14,
          ],
          "searchable": True or False, # If true, custom attribute values are searchable by text queries in SearchService.Search. This field is ignored in a UserEvent. Only set if type text is set. Otherwise, a INVALID_ARGUMENT error is returned.
          "text": [ # The textual values of this custom attribute. For example, `["yellow", "green"]` when the key is "color". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
            "A String",
          ],
        },
      },
      "attributionToken": "A String", # Highly recommended for user events that are the result of PredictionService.Predict. This field enables accurate attribution of recommendation model performance. The value must be a valid PredictResponse.attribution_token for user events that are the result of PredictionService.Predict. The value must be a valid SearchResponse.attribution_token for user events that are the result of SearchService.Search. This token enables us to accurately attribute page view or purchase back to the event and the particular predict response containing this clicked/purchased product. If user clicks on product K in the recommendation results, pass PredictResponse.attribution_token as a URL parameter to product K's page. When recording events on product K's page, log the PredictResponse.attribution_token to this field.
      "cartId": "A String", # The ID or name of the associated shopping cart. This ID is used to associate multiple items added or present in the cart before purchase. This can only be set for `add-to-cart`, `purchase-complete`, or `shopping-cart-page-view` events.
      "completionDetail": { # Detailed completion information including completion attribution token and clicked completion info. # The main auto-completion details related to the event. This field should be set for `search` event when autocomplete function is enabled and the user clicks a suggestion for search.
        "completionAttributionToken": "A String", # Completion attribution token in CompleteQueryResponse.attribution_token.
        "selectedPosition": 42, # End user selected CompleteQueryResponse.CompletionResult.suggestion position, starting from 0.
        "selectedSuggestion": "A String", # End user selected CompleteQueryResponse.CompletionResult.suggestion.
      },
      "eventTime": "A String", # Only required for UserEventService.ImportUserEvents method. Timestamp of when the user event happened.
      "eventType": "A String", # Required. User event type. Allowed values are: * `add-to-cart`: Products being added to cart. * `category-page-view`: Special pages such as sale or promotion pages viewed. * `detail-page-view`: Products detail page viewed. * `home-page-view`: Homepage viewed. * `promotion-offered`: Promotion is offered to a user. * `promotion-not-offered`: Promotion is not offered to a user. * `purchase-complete`: User finishing a purchase. * `search`: Product search. * `shopping-cart-page-view`: User viewing a shopping cart.
      "experimentIds": [ # A list of identifiers for the independent experiment groups this user event belongs to. This is used to distinguish between user events associated with different experiment setups (e.g. using Retail API, using different recommendation models).
        "A String",
      ],
      "filter": "A String", # The filter syntax consists of an expression language for constructing a predicate from one or more fields of the products being filtered. See SearchRequest.filter for definition and syntax. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned.
      "offset": 42, # An integer that specifies the current offset for pagination (the 0-indexed starting location, amongst the products deemed by the API as relevant). See SearchRequest.offset for definition. If this field is negative, an INVALID_ARGUMENT is returned. This can only be set for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
      "orderBy": "A String", # The order in which products are returned. See SearchRequest.order_by for definition and syntax. The value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This can only be set for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
      "pageCategories": [ # The categories associated with a category page. To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s). Category pages include special pages such as sales or promotions. For instance, a special sale page may have the category hierarchy: "pageCategories" : ["Sales > 2017 Black Friday Deals"]. Required for `category-page-view` events. At least one of search_query or page_categories is required for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
        "A String",
      ],
      "pageViewId": "A String", # A unique ID of a web page view. This should be kept the same for all user events triggered from the same pageview. For example, an item detail page view could trigger multiple events as the user is browsing the page. The `pageViewId` property should be kept the same for all these events so that they can be grouped together properly. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
      "productDetails": [ # The main product details related to the event. This field is required for the following event types: * `add-to-cart` * `detail-page-view` * `purchase-complete` * `search` In a `search` event, this field represents the products returned to the end user on the current page (the end user may have not finished browsing the whole page yet). When a new page is returned to the end user, after pagination/filtering/ordering even for the same query, a new `search` event with different product_details is desired. The end user may have not finished browsing the whole page yet.
        { # Detailed product information associated with a user event.
          "product": { # Product captures all metadata information of items to be recommended or searched. # Required. Product information. Required field(s): * Product.id Optional override field(s): * Product.price_info If any supported optional fields are provided, we will treat them as a full override when looking up product information from the catalog. Thus, it is important to ensure that the overriding fields are accurate and complete. All other product fields are ignored and instead populated via catalog lookup after event ingestion.
            "attributes": { # Highly encouraged. Extra product attributes to be included. For example, for products, this could include the store name, vendor, style, color, etc. These are very strong signals for recommendation model, thus we highly recommend providing the attributes here. Features that can take on one of a limited number of possible values. Two types of features can be set are: Textual features. some examples would be the brand/maker of a product, or country of a customer. Numerical features. Some examples would be the height/weight of a product, or age of a customer. For example: `{ "vendor": {"text": ["vendor123", "vendor456"]}, "lengths_cm": {"numbers":[2.3, 15.4]}, "heights_cm": {"numbers":[8.1, 6.4]} }`. This field needs to pass all below criteria, otherwise an INVALID_ARGUMENT error is returned: * Max entries count: 200. * The key must be a UTF-8 encoded string with a length limit of 128 characters. * For indexable attribute, the key must match the pattern: `a-zA-Z0-9*`. For example, `key0LikeThis` or `KEY_1_LIKE_THIS`. * For text attributes, at most 400 values are allowed. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 256 characters. * For number attributes, at most 400 values are allowed.
              "a_key": { # A custom attribute that is not explicitly modeled in Product.
                "indexable": True or False, # If true, custom attribute values are indexed, so that it can be filtered, faceted or boosted in SearchService.Search. This field is ignored in a UserEvent. See SearchRequest.filter, SearchRequest.facet_specs and SearchRequest.boost_spec for more details.
                "numbers": [ # The numerical values of this custom attribute. For example, `[2.3, 15.4]` when the key is "lengths_cm". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                  3.14,
                ],
                "searchable": True or False, # If true, custom attribute values are searchable by text queries in SearchService.Search. This field is ignored in a UserEvent. Only set if type text is set. Otherwise, a INVALID_ARGUMENT error is returned.
                "text": [ # The textual values of this custom attribute. For example, `["yellow", "green"]` when the key is "color". Exactly one of text or numbers should be set. Otherwise, an INVALID_ARGUMENT error is returned.
                  "A String",
                ],
              },
            },
            "audience": { # An intended audience of the Product for whom it's sold. # The target group associated with a given audience (e.g. male, veterans, car owners, musicians, etc.) of the product.
              "ageGroups": [ # The age groups of the audience. Strongly encouraged to use the standard values: "newborn" (up to 3 months old), "infant" (3–12 months old), "toddler" (1–5 years old), "kids" (5–13 years old), "adult" (typically teens or older). At most 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [age_group](https://support.google.com/merchants/answer/6324463). Schema.org property [Product.audience.suggestedMinAge](https://schema.org/suggestedMinAge) and [Product.audience.suggestedMaxAge](https://schema.org/suggestedMaxAge).
                "A String",
              ],
              "genders": [ # The genders of the audience. Strongly encouraged to use the standard values: "male", "female", "unisex". At most 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [gender](https://support.google.com/merchants/answer/6324479). Schema.org property [Product.audience.suggestedGender](https://schema.org/suggestedGender).
                "A String",
              ],
            },
            "availability": "A String", # The online availability of the Product. Default to Availability.IN_STOCK. Corresponding properties: Google Merchant Center property [availability](https://support.google.com/merchants/answer/6324448). Schema.org property [Offer.availability](https://schema.org/availability).
            "availableQuantity": 42, # The available quantity of the item.
            "availableTime": "A String", # The timestamp when this Product becomes available for SearchService.Search.
            "brands": [ # The brands of the product. A maximum of 30 brands are allowed. Each brand must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [brand](https://support.google.com/merchants/answer/6324351). Schema.org property [Product.brand](https://schema.org/brand).
              "A String",
            ],
            "categories": [ # Product categories. This field is repeated for supporting one product belonging to several parallel categories. Strongly recommended using the full path for better search / recommendation quality. To represent full path of category, use '>' sign to separate different hierarchies. If '>' is part of the category name, please replace it with other character(s). For example, if a shoes product belongs to both ["Shoes & Accessories" -> "Shoes"] and ["Sports & Fitness" -> "Athletic Clothing" -> "Shoes"], it could be represented as: "categories": [ "Shoes & Accessories > Shoes", "Sports & Fitness > Athletic Clothing > Shoes" ] Must be set for Type.PRIMARY Product otherwise an INVALID_ARGUMENT error is returned. At most 250 values are allowed per Product. Empty values are not allowed. Each value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property google_product_category. Schema.org property [Product.category] (https://schema.org/category). [mc_google_product_category]: https://support.google.com/merchants/answer/6324436
              "A String",
            ],
            "collectionMemberIds": [ # The id of the collection members when type is Type.COLLECTION. Should not set it for other types. A maximum of 1000 values are allowed. Otherwise, an INVALID_ARGUMENT error is return.
              "A String",
            ],
            "colorInfo": { # The color information of a Product. # The color of the product. Corresponding properties: Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
              "colorFamilies": [ # The standard color families. Strongly recommended to use the following standard color groups: "Red", "Pink", "Orange", "Yellow", "Purple", "Green", "Cyan", "Blue", "Brown", "White", "Gray", "Black" and "Mixed". Normally it is expected to have only 1 color family. May consider using single "Mixed" instead of multiple values. A maximum of 5 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                "A String",
              ],
              "colors": [ # The color display names, which may be different from standard color family names, such as the color aliases used in the website frontend. Normally it is expected to have only 1 color. May consider using single "Mixed" instead of multiple values. A maximum of 25 colors are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [color](https://support.google.com/merchants/answer/6324487). Schema.org property [Product.color](https://schema.org/color).
                "A String",
              ],
            },
            "conditions": [ # The condition of the product. Strongly encouraged to use the standard values: "new", "refurbished", "used". A maximum of 1 value is allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [condition](https://support.google.com/merchants/answer/6324469). Schema.org property [Offer.itemCondition](https://schema.org/itemCondition).
              "A String",
            ],
            "description": "A String", # Product description. This field must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [description](https://support.google.com/merchants/answer/6324468). Schema.org property [Product.description](https://schema.org/description).
            "expireTime": "A String", # The timestamp when this product becomes unavailable for SearchService.Search. If it is set, the Product is not available for SearchService.Search after expire_time. However, the product can still be retrieved by ProductService.GetProduct and ProductService.ListProducts. expire_time must be later than available_time and publish_time, otherwise an INVALID_ARGUMENT error is thrown. Corresponding properties: Google Merchant Center property [expiration_date](https://support.google.com/merchants/answer/6324499).
            "fulfillmentInfo": [ # Fulfillment information, such as the store IDs for in-store pickup or region IDs for different shipping methods. All the elements must have distinct FulfillmentInfo.type. Otherwise, an INVALID_ARGUMENT error is returned.
              { # Fulfillment information, such as the store IDs for in-store pickup or region IDs for different shipping methods.
                "placeIds": [ # The IDs for this type, such as the store IDs for FulfillmentInfo.type.pickup-in-store or the region IDs for FulfillmentInfo.type.same-day-delivery. A maximum of 3000 values are allowed. Each value must be a string with a length limit of 30 characters, matching the pattern `[a-zA-Z0-9_-]+`, such as "store1" or "REGION-2". Otherwise, an INVALID_ARGUMENT error is returned.
                  "A String",
                ],
                "type": "A String", # The fulfillment type, including commonly used types (such as pickup in store and same day delivery), and custom types. Customers have to map custom types to their display names before rendering UI. Supported values: * "pickup-in-store" * "ship-to-store" * "same-day-delivery" * "next-day-delivery" * "custom-type-1" * "custom-type-2" * "custom-type-3" * "custom-type-4" * "custom-type-5" If this field is set to an invalid value other than these, an INVALID_ARGUMENT error is returned.
              },
            ],
            "gtin": "A String", # The Global Trade Item Number (GTIN) of the product. This field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. This field must be a Unigram. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [gtin](https://support.google.com/merchants/answer/6324461). Schema.org property [Product.isbn](https://schema.org/isbn), [Product.gtin8](https://schema.org/gtin8), [Product.gtin12](https://schema.org/gtin12), [Product.gtin13](https://schema.org/gtin13), or [Product.gtin14](https://schema.org/gtin14). If the value is not a valid GTIN, an INVALID_ARGUMENT error is returned.
            "id": "A String", # Immutable. Product identifier, which is the final component of name. For example, this field is "id_1", if name is `projects/*/locations/global/catalogs/default_catalog/branches/default_branch/products/id_1`. This field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [id](https://support.google.com/merchants/answer/6324405). Schema.org property [Product.sku](https://schema.org/sku).
            "images": [ # Product images for the product.Highly recommended to put the main image to the first. A maximum of 300 images are allowed. Corresponding properties: Google Merchant Center property [image_link](https://support.google.com/merchants/answer/6324350). Schema.org property [Product.image](https://schema.org/image).
              { # Product thumbnail/detail image.
                "height": 42, # Height of the image in number of pixels. This field must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
                "uri": "A String", # Required. URI of the image. This field must be a valid UTF-8 encoded URI with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [image_link](https://support.google.com/merchants/answer/6324350). Schema.org property [Product.image](https://schema.org/image).
                "width": 42, # Width of the image in number of pixels. This field must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
              },
            ],
            "languageCode": "A String", # Language of the title/description and other string attributes. Use language tags defined by [BCP 47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt). For product prediction, this field is ignored and the model automatically detects the text language. The Product can include text in different languages, but duplicating Products to provide text in multiple languages can result in degraded model performance. For product search this field is in use. It defaults to "en-US" if unset.
            "materials": [ # The material of the product. For example, "leather", "wooden". A maximum of 20 values are allowed. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [material](https://support.google.com/merchants/answer/6324410). Schema.org property [Product.material](https://schema.org/material).
              "A String",
            ],
            "name": "A String", # Immutable. Full resource name of the product, such as `projects/*/locations/global/catalogs/default_catalog/branches/default_branch/products/product_id`.
            "patterns": [ # The pattern or graphic print of the product. For example, "striped", "polka dot", "paisley". A maximum of 20 values are allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [pattern](https://support.google.com/merchants/answer/6324483). Schema.org property [Product.pattern](https://schema.org/pattern).
              "A String",
            ],
            "priceInfo": { # The price information of a Product. # Product price and cost information. Corresponding properties: Google Merchant Center property [price](https://support.google.com/merchants/answer/6324371).
              "cost": 3.14, # The costs associated with the sale of a particular product. Used for gross profit reporting. * Profit = price - cost Google Merchant Center property [cost_of_goods_sold](https://support.google.com/merchants/answer/9017895).
              "currencyCode": "A String", # The 3-letter currency code defined in [ISO 4217](https://www.iso.org/iso-4217-currency-codes.html). If this field is an unrecognizable currency code, an INVALID_ARGUMENT error is returned. The Product.Type.VARIANT Products with the same Product.primary_product_id must share the same currency_code. Otherwise, a FAILED_PRECONDITION error is returned.
              "originalPrice": 3.14, # Price of the product without any discount. If zero, by default set to be the price.
              "price": 3.14, # Price of the product. Google Merchant Center property [price](https://support.google.com/merchants/answer/6324371). Schema.org property [Offer.price](https://schema.org/price).
              "priceEffectiveTime": "A String", # The timestamp when the price starts to be effective. This can be set as a future timestamp, and the price is only used for search after price_effective_time. If so, the original_price must be set and original_price is used before price_effective_time. Do not set if price is always effective because it will cause additional latency during search.
              "priceExpireTime": "A String", # The timestamp when the price stops to be effective. The price is used for search before price_expire_time. If this field is set, the original_price must be set and original_price is used after price_expire_time. Do not set if price is always effective because it will cause additional latency during search.
              "priceRange": { # The price range of all variant Product having the same Product.primary_product_id. # Output only. The price range of all the child Product.Type.VARIANT Products grouped together on the Product.Type.PRIMARY Product. Only populated for Product.Type.PRIMARY Products. Note: This field is OUTPUT_ONLY for ProductService.GetProduct. Do not set this field in API requests.
                "originalPrice": { # A floating point interval. # The inclusive Product.pricing_info.original_price internal of all variant Product having the same Product.primary_product_id.
                  "exclusiveMaximum": 3.14, # Exclusive upper bound.
                  "exclusiveMinimum": 3.14, # Exclusive lower bound.
                  "maximum": 3.14, # Inclusive upper bound.
                  "minimum": 3.14, # Inclusive lower bound.
                },
                "price": { # A floating point interval. # The inclusive Product.pricing_info.price interval of all variant Product having the same Product.primary_product_id.
                  "exclusiveMaximum": 3.14, # Exclusive upper bound.
                  "exclusiveMinimum": 3.14, # Exclusive lower bound.
                  "maximum": 3.14, # Inclusive upper bound.
                  "minimum": 3.14, # Inclusive lower bound.
                },
              },
            },
            "primaryProductId": "A String", # Variant group identifier. Must be an id, with the same parent branch with this product. Otherwise, an error is thrown. For Type.PRIMARY Products, this field can only be empty or set to the same value as id. For VARIANT Products, this field cannot be empty. A maximum of 2,000 products are allowed to share the same Type.PRIMARY Product. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [item_group_id](https://support.google.com/merchants/answer/6324507). Schema.org property [Product.inProductGroupWithID](https://schema.org/inProductGroupWithID).
            "promotions": [ # The promotions applied to the product. A maximum of 10 values are allowed per Product.
              { # Promotion information.
                "promotionId": "A String", # ID of the promotion. For example, "free gift". The value value must be a UTF-8 encoded string with a length limit of 128 characters, and match the pattern: `a-zA-Z*`. For example, id0LikeThis or ID_1_LIKE_THIS. Otherwise, an INVALID_ARGUMENT error is returned. Google Merchant Center property [promotion](https://support.google.com/merchants/answer/7050148).
              },
            ],
            "publishTime": "A String", # The timestamp when the product is published by the retailer for the first time, which indicates the freshness of the products. Note that this field is different from available_time, given it purely describes product freshness regardless of when it is available on search and recommendation.
            "rating": { # The rating of a Product. # The rating of this product.
              "averageRating": 3.14, # The average rating of the Product. The rating is scaled at 1-5. Otherwise, an INVALID_ARGUMENT error is returned.
              "ratingCount": 42, # The total number of ratings. This value is independent of the value of rating_histogram. This value must be nonnegative. Otherwise, an INVALID_ARGUMENT error is returned.
              "ratingHistogram": [ # List of rating counts per rating value (index = rating - 1). The list is empty if there is no rating. If the list is non-empty, its size is always 5. Otherwise, an INVALID_ARGUMENT error is returned. For example, [41, 14, 13, 47, 303]. It means that the Product got 41 ratings with 1 star, 14 ratings with 2 star, and so on.
                42,
              ],
            },
            "retrievableFields": "A String", # Indicates which fields in the Products are returned in SearchResponse. Supported fields for all types: * audience * availability * brands * color_info * conditions * gtin * materials * name * patterns * price_info * rating * sizes * title * uri Supported fields only for Type.PRIMARY and Type.COLLECTION: * categories * description * images Supported fields only for Type.VARIANT: * Only the first image in images To mark attributes as retrievable, include paths of the form "attributes.key" where "key" is the key of a custom attribute, as specified in attributes. For Type.PRIMARY and Type.COLLECTION, the following fields are always returned in SearchResponse by default: * name For Type.VARIANT, the following fields are always returned in by default: * name * color_info Maximum number of paths is 30. Otherwise, an INVALID_ARGUMENT error is returned. Note: Returning more fields in SearchResponse may increase response payload size and serving latency.
            "sizes": [ # The size of the product. To represent different size systems or size types, consider using this format: [[[size_system:]size_type:]size_value]. For example, in "US:MENS:M", "US" represents size system; "MENS" represents size type; "M" represents size value. In "GIRLS:27", size system is empty; "GIRLS" represents size type; "27" represents size value. In "32 inches", both size system and size type are empty, while size value is "32 inches". A maximum of 20 values are allowed per Product. Each value must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [size](https://support.google.com/merchants/answer/6324492), [size_type](https://support.google.com/merchants/answer/6324497), and [size_system](https://support.google.com/merchants/answer/6324502). Schema.org property [Product.size](https://schema.org/size).
              "A String",
            ],
            "tags": [ # Custom tags associated with the product. At most 250 values are allowed per Product. This value must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This tag can be used for filtering recommendation results by passing the tag as part of the PredictRequest.filter. Corresponding properties: Google Merchant Center property [custom_label_0–4](https://support.google.com/merchants/answer/6324473).
              "A String",
            ],
            "title": "A String", # Required. Product title. This field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [title](https://support.google.com/merchants/answer/6324415). Schema.org property [Product.name](https://schema.org/name).
            "ttl": "A String", # Input only. The TTL (time to live) of the product. If it is set, it must be a non-negative value, and expire_time is set as current timestamp plus ttl. The derived expire_time is returned in the output and ttl is left blank when retrieving the Product. If it is set, the product is not available for SearchService.Search after current timestamp plus ttl. However, the product can still be retrieved by ProductService.GetProduct and ProductService.ListProducts.
            "type": "A String", # Immutable. The type of the product. Default to Catalog.product_level_config.ingestion_product_type if unset.
            "uri": "A String", # Canonical URL directly linking to the product detail page. It is strongly recommended to provide a valid uri for the product, otherwise the service performance could be significantly degraded. This field must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. Corresponding properties: Google Merchant Center property [link](https://support.google.com/merchants/answer/6324416). Schema.org property [Offer.url](https://schema.org/url).
            "variants": [ # Output only. Product variants grouped together on primary product which share similar product attributes. It's automatically grouped by primary_product_id for all the product variants. Only populated for Type.PRIMARY Products. Note: This field is OUTPUT_ONLY for ProductService.GetProduct. Do not set this field in API requests.
              # Object with schema name: GoogleCloudRetailV2Product
            ],
          },
          "quantity": 42, # Quantity of the product associated with the user event. For example, this field will be 2 if two products are added to the shopping cart for `purchase-complete` event. Required for `add-to-cart` and `purchase-complete` event types.
        },
      ],
      "purchaseTransaction": { # A transaction represents the entire purchase transaction. # A transaction represents the entire purchase transaction. Required for `purchase-complete` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
        "cost": 3.14, # All the costs associated with the products. These can be manufacturing costs, shipping expenses not borne by the end user, or any other costs, such that: * Profit = revenue - tax - cost
        "currencyCode": "A String", # Required. Currency code. Use three-character ISO-4217 code.
        "id": "A String", # The transaction ID with a length limit of 128 characters.
        "revenue": 3.14, # Required. Total non-zero revenue or grand total associated with the transaction. This value include shipping, tax, or other adjustments to total revenue that you want to include as part of your revenue calculations.
        "tax": 3.14, # All the taxes associated with the transaction.
      },
      "referrerUri": "A String", # The referrer URL of the current page. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically.
      "searchQuery": "A String", # The user's search query. See SearchRequest.query for definition. The value must be a UTF-8 encoded string with a length limit of 5,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. At least one of search_query or page_categories is required for `search` events. Other event types should not set this field. Otherwise, an INVALID_ARGUMENT error is returned.
      "sessionId": "A String", # A unique identifier for tracking a visitor session with a length limit of 128 bytes. A session is an aggregation of an end user behavior in a time span. A general guideline to populate the sesion_id: 1. If user has no activity for 30 min, a new session_id should be assigned. 2. The session_id should be unique across users, suggest use uuid or add visitor_id as prefix.
      "uri": "A String", # Complete URL (window.location.href) of the user's current page. When using the client side event reporting with JavaScript pixel and Google Tag Manager, this value is filled in automatically. Maximum length 5,000 characters.
      "userInfo": { # Information of an end user. # User information.
        "directUserRequest": True or False, # True if the request is made directly from the end user, in which case the ip_address and user_agent can be populated from the HTTP request. This flag should be set only if the API request is made directly from the end user such as a mobile app (and not if a gateway or a server is processing and pushing the user events). This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent.
        "ipAddress": "A String", # The end user's IP address. Required for getting SearchResponse.sponsored_results. This field is used to extract location information for personalization. This field must be either an IPv4 address (e.g. "104.133.9.80") or an IPv6 address (e.g. "2001:0db8:85a3:0000:0000:8a2e:0370:7334"). Otherwise, an INVALID_ARGUMENT error is returned. This should not be set when using the JavaScript tag in UserEventService.CollectUserEvent or if direct_user_request is set.
        "userAgent": "A String", # User agent as included in the HTTP header. Required for getting SearchResponse.sponsored_results. The field must be a UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an INVALID_ARGUMENT error is returned. This should not be set when using the client side event reporting with GTM or JavaScript tag in UserEventService.CollectUserEvent or if direct_user_request is set.
        "userId": "A String", # Highly recommended for logged-in users. Unique identifier for logged-in user, such as a user name. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.
      },
      "visitorId": "A String", # Required. A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor log in/out of the website. The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned. The field should not contain PII or user-data. We recommend to use Google Analystics [Client ID](https://developers.google.com/analytics/devguides/collection/analyticsjs/field-reference#clientId) for this field.
    }