# Google Classroom API . courses . announcements

## Instance Methods

Close httplib2 connections.

Creates an announcement. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course, create announcements in the requested course, share a Drive attachment, or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course does not exist. * `FAILED_PRECONDITION` for the following request error: * AttachmentNotVisible

Deletes an announcement. This request must be made by the Developer Console project of the [OAuth client ID](https://support.google.com/cloud/answer/6158849) used to create the corresponding announcement item. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting developer project did not create the corresponding announcement, if the requesting user is not permitted to delete the requested course or for access errors. * `FAILED_PRECONDITION` if the requested announcement has already been deleted. * `NOT_FOUND` if no course exists with the requested ID.

Returns an announcement. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or announcement, or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course or announcement does not exist.

Returns a list of announcements that the requester is permitted to view. Course students may only view `PUBLISHED` announcements. Course teachers and domain administrators may view all announcements. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course does not exist.

Retrieves the next page of results.

Modifies assignee mode and options of an announcement. Only a teacher of the course that contains the announcement may call this method. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or course work or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course or course work does not exist.

Updates one or more fields of an announcement. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting developer project did not create the corresponding announcement or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `FAILED_PRECONDITION` if the requested announcement has already been deleted. * `NOT_FOUND` if the requested course or announcement does not exist

### Method Details

`close()`

    Close httplib2 connections.

`create(courseId, body=None, x__xgafv=None)`

    Creates an announcement. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course, create announcements in the requested course, share a Drive attachment, or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course does not exist. * `FAILED_PRECONDITION` for the following request error: * AttachmentNotVisible

    Args:
      courseId: string, Identifier of the course. This identifier can be either the Classroom-assigned identifier or an alias. (required)
      body: object, The request body.
        The object takes the form of:

    { # Announcement created by a teacher for students of the course
      "materials": [ # Additional materials. Announcements must have no more than 20 material items.
        { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
          "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
            "shareMode": "A String", # Mechanism by which students access the Drive item.
            "driveFile": { # Representation of a Google Drive file. # Drive file details.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
              "title": "A String", # Title of the Drive item. Read-only.
              "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
              "id": "A String", # Drive API resource ID.
            },
          },
          "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
            "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
            "title": "A String", # Title of the target of the URL. Read-only.
            "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
          },
          "youtubeVideo": { # YouTube video item. # YouTube video material.
            "title": "A String", # Title of the YouTube video. Read-only.
            "id": "A String", # YouTube API resource ID.
            "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
            "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
          },
          "form": { # Google Forms item. # Google Forms material.
            "title": "A String", # Title of the Form. Read-only.
            "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
            "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
            "formUrl": "A String", # URL of the form.
          },
        },
      ],
      "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
      "courseId": "A String", # Identifier of the course. Read-only.
      "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
      "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
      "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
      "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
      "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
      "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
      "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
        "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
          "A String",
        ],
      },
      "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
      "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
    }

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

    Returns:
      An object of the form:

        { # Announcement created by a teacher for students of the course
        "materials": [ # Additional materials. Announcements must have no more than 20 material items.
          { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
            "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
              "shareMode": "A String", # Mechanism by which students access the Drive item.
              "driveFile": { # Representation of a Google Drive file. # Drive file details.
                "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
                "title": "A String", # Title of the Drive item. Read-only.
                "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
                "id": "A String", # Drive API resource ID.
              },
            },
            "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
              "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
              "title": "A String", # Title of the target of the URL. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
            },
            "youtubeVideo": { # YouTube video item. # YouTube video material.
              "title": "A String", # Title of the YouTube video. Read-only.
              "id": "A String", # YouTube API resource ID.
              "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
            },
            "form": { # Google Forms item. # Google Forms material.
              "title": "A String", # Title of the Form. Read-only.
              "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
              "formUrl": "A String", # URL of the form.
            },
          },
        ],
        "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
        "courseId": "A String", # Identifier of the course. Read-only.
        "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
        "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
        "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
        "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
        "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
        "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
        "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
          "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
            "A String",
          ],
        },
        "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
        "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
      }

`delete(courseId, id, x__xgafv=None)`

    Deletes an announcement. This request must be made by the Developer Console project of the [OAuth client ID](https://support.google.com/cloud/answer/6158849) used to create the corresponding announcement item. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting developer project did not create the corresponding announcement, if the requesting user is not permitted to delete the requested course or for access errors. * `FAILED_PRECONDITION` if the requested announcement has already been deleted. * `NOT_FOUND` if no course exists with the requested ID.

    Args:
      courseId: string, Identifier of the course. This identifier can be either the Classroom-assigned identifier or an alias. (required)
      id: string, Identifier of the announcement to delete. This identifier is a Classroom-assigned identifier. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # A generic empty message that you can re-use to avoid defining duplicated empty messages in your APIs. A typical example is to use it as the request or the response type of an API method. For instance: service Foo { rpc Bar(google.protobuf.Empty) returns (google.protobuf.Empty); } The JSON representation for `Empty` is empty JSON object `{}`.
      }

`get(courseId, id, x__xgafv=None)`

    Returns an announcement. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or announcement, or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course or announcement does not exist.

    Args:
      courseId: string, Identifier of the course. This identifier can be either the Classroom-assigned identifier or an alias. (required)
      id: string, Identifier of the announcement. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Announcement created by a teacher for students of the course
        "materials": [ # Additional materials. Announcements must have no more than 20 material items.
          { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
            "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
              "shareMode": "A String", # Mechanism by which students access the Drive item.
              "driveFile": { # Representation of a Google Drive file. # Drive file details.
                "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
                "title": "A String", # Title of the Drive item. Read-only.
                "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
                "id": "A String", # Drive API resource ID.
              },
            },
            "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
              "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
              "title": "A String", # Title of the target of the URL. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
            },
            "youtubeVideo": { # YouTube video item. # YouTube video material.
              "title": "A String", # Title of the YouTube video. Read-only.
              "id": "A String", # YouTube API resource ID.
              "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
            },
            "form": { # Google Forms item. # Google Forms material.
              "title": "A String", # Title of the Form. Read-only.
              "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
              "formUrl": "A String", # URL of the form.
            },
          },
        ],
        "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
        "courseId": "A String", # Identifier of the course. Read-only.
        "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
        "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
        "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
        "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
        "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
        "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
        "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
          "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
            "A String",
          ],
        },
        "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
        "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
      }

`list(courseId, pageSize=None, orderBy=None, pageToken=None, announcementStates=None, x__xgafv=None)`

    Returns a list of announcements that the requester is permitted to view. Course students may only view `PUBLISHED` announcements. Course teachers and domain administrators may view all announcements. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course does not exist.

    Args:
      courseId: string, Identifier of the course. This identifier can be either the Classroom-assigned identifier or an alias. (required)
      pageSize: integer, Maximum number of items to return. Zero or unspecified indicates that the server may assign a maximum. The server may return fewer than the specified number of results.
      orderBy: string, Optional sort ordering for results. A comma-separated list of fields with an optional sort direction keyword. Supported field is `updateTime`. Supported direction keywords are `asc` and `desc`. If not specified, `updateTime desc` is the default behavior. Examples: `updateTime asc`, `updateTime`
      pageToken: string, nextPageToken value returned from a previous list call, indicating that the subsequent page of results should be returned. The list request must be otherwise identical to the one that resulted in this token.
      announcementStates: string, Restriction on the `state` of announcements returned. If this argument is left unspecified, the default value is `PUBLISHED`. (repeated)
        Allowed values
          ANNOUNCEMENT_STATE_UNSPECIFIED - No state specified. This is never returned.
          PUBLISHED - Status for announcement that has been published. This is the default state.
          DRAFT - Status for an announcement that is not yet published. Announcement in this state is visible only to course teachers and domain administrators.
          DELETED - Status for announcement that was published but is now deleted. Announcement in this state is visible only to course teachers and domain administrators. Announcement in this state is deleted after some time.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Response when listing course work.
        "announcements": [ # Announcement items that match the request.
          { # Announcement created by a teacher for students of the course
            "materials": [ # Additional materials. Announcements must have no more than 20 material items.
              { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
                "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
                  "shareMode": "A String", # Mechanism by which students access the Drive item.
                  "driveFile": { # Representation of a Google Drive file. # Drive file details.
                    "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
                    "title": "A String", # Title of the Drive item. Read-only.
                    "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
                    "id": "A String", # Drive API resource ID.
                  },
                },
                "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
                  "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
                  "title": "A String", # Title of the target of the URL. Read-only.
                  "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
                },
                "youtubeVideo": { # YouTube video item. # YouTube video material.
                  "title": "A String", # Title of the YouTube video. Read-only.
                  "id": "A String", # YouTube API resource ID.
                  "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
                  "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
                },
                "form": { # Google Forms item. # Google Forms material.
                  "title": "A String", # Title of the Form. Read-only.
                  "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
                  "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
                  "formUrl": "A String", # URL of the form.
                },
              },
            ],
            "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
            "courseId": "A String", # Identifier of the course. Read-only.
            "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
            "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
            "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
            "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
            "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
            "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
            "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
              "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
                "A String",
              ],
            },
            "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
            "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
          },
        ],
        "nextPageToken": "A String", # Token identifying the next page of results to return. If empty, no further results are available.
      }

`list_next(previous_request, previous_response)`

    Retrieves the next page of results.

    Args:
      previous_request: The request for the previous page. (required)
      previous_response: The response from the request for the previous page. (required)

    Returns:
      A request object that you can call 'execute()' on to request the next
      page. Returns None if there are no more items in the collection.

`modifyAssignees(courseId, id, body=None, x__xgafv=None)`

    Modifies assignee mode and options of an announcement. Only a teacher of the course that contains the announcement may call this method. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or course work or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `NOT_FOUND` if the requested course or course work does not exist.

    Args:
      courseId: string, Identifier of the course. This identifier can be either the Classroom-assigned identifier or an alias. (required)
      id: string, Identifier of the announcement. (required)
      body: object, The request body.
        The object takes the form of:

    { # Request to modify assignee mode and options of an announcement.
        "assigneeMode": "A String", # Mode of the announcement describing whether it is accessible by all students or specified individual students.
        "modifyIndividualStudentsOptions": { # Contains fields to add or remove students from a course work or announcement where the `assigneeMode` is set to `INDIVIDUAL_STUDENTS`. # Set which students can view or cannot view the announcement. Must be specified only when `assigneeMode` is `INDIVIDUAL_STUDENTS`.
          "addStudentIds": [ # IDs of students to be added as having access to this coursework/announcement.
            "A String",
          ],
          "removeStudentIds": [ # IDs of students to be removed from having access to this coursework/announcement.
            "A String",
          ],
        },
      }

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

    Returns:
      An object of the form:

        { # Announcement created by a teacher for students of the course
        "materials": [ # Additional materials. Announcements must have no more than 20 material items.
          { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
            "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
              "shareMode": "A String", # Mechanism by which students access the Drive item.
              "driveFile": { # Representation of a Google Drive file. # Drive file details.
                "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
                "title": "A String", # Title of the Drive item. Read-only.
                "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
                "id": "A String", # Drive API resource ID.
              },
            },
            "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
              "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
              "title": "A String", # Title of the target of the URL. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
            },
            "youtubeVideo": { # YouTube video item. # YouTube video material.
              "title": "A String", # Title of the YouTube video. Read-only.
              "id": "A String", # YouTube API resource ID.
              "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
            },
            "form": { # Google Forms item. # Google Forms material.
              "title": "A String", # Title of the Form. Read-only.
              "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
              "formUrl": "A String", # URL of the form.
            },
          },
        ],
        "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
        "courseId": "A String", # Identifier of the course. Read-only.
        "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
        "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
        "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
        "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
        "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
        "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
        "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
          "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
            "A String",
          ],
        },
        "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
        "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
      }

`patch(courseId, id, body=None, updateMask=None, x__xgafv=None)`

    Updates one or more fields of an announcement. This method returns the following error codes: * `PERMISSION_DENIED` if the requesting developer project did not create the corresponding announcement or for access errors. * `INVALID_ARGUMENT` if the request is malformed. * `FAILED_PRECONDITION` if the requested announcement has already been deleted. * `NOT_FOUND` if the requested course or announcement does not exist

    Args:
      courseId: string, Identifier of the course. This identifier can be either the Classroom-assigned identifier or an alias. (required)
      id: string, Identifier of the announcement. (required)
      body: object, The request body.
        The object takes the form of:

    { # Announcement created by a teacher for students of the course
      "materials": [ # Additional materials. Announcements must have no more than 20 material items.
        { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
          "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
            "shareMode": "A String", # Mechanism by which students access the Drive item.
            "driveFile": { # Representation of a Google Drive file. # Drive file details.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
              "title": "A String", # Title of the Drive item. Read-only.
              "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
              "id": "A String", # Drive API resource ID.
            },
          },
          "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
            "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
            "title": "A String", # Title of the target of the URL. Read-only.
            "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
          },
          "youtubeVideo": { # YouTube video item. # YouTube video material.
            "title": "A String", # Title of the YouTube video. Read-only.
            "id": "A String", # YouTube API resource ID.
            "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
            "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
          },
          "form": { # Google Forms item. # Google Forms material.
            "title": "A String", # Title of the Form. Read-only.
            "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
            "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
            "formUrl": "A String", # URL of the form.
          },
        },
      ],
      "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
      "courseId": "A String", # Identifier of the course. Read-only.
      "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
      "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
      "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
      "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
      "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
      "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
      "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
        "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
          "A String",
        ],
      },
      "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
      "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
    }

      updateMask: string, Mask that identifies which fields on the announcement to update. This field is required to do an update. The update fails if invalid fields are specified. If a field supports empty values, it can be cleared by specifying it in the update mask and not in the Announcement object. If a field that does not support empty values is included in the update mask and not set in the Announcement object, an `INVALID_ARGUMENT` error is returned. The following fields may be specified by teachers: * `text` * `state` * `scheduled_time`
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Announcement created by a teacher for students of the course
        "materials": [ # Additional materials. Announcements must have no more than 20 material items.
          { # Material attached to course work. When creating attachments, setting the `form` field is not supported.
            "driveFile": { # Drive file that is used as material for course work. # Google Drive file material.
              "shareMode": "A String", # Mechanism by which students access the Drive item.
              "driveFile": { # Representation of a Google Drive file. # Drive file details.
                "thumbnailUrl": "A String", # URL of a thumbnail image of the Drive item. Read-only.
                "title": "A String", # Title of the Drive item. Read-only.
                "alternateLink": "A String", # URL that can be used to access the Drive item. Read-only.
                "id": "A String", # Drive API resource ID.
              },
            },
            "link": { # URL item. # Link material. On creation, this is upgraded to a more appropriate type if possible, and this is reflected in the response.
              "url": "A String", # URL to link to. This must be a valid UTF-8 string containing between 1 and 2024 characters.
              "title": "A String", # Title of the target of the URL. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the target URL. Read-only.
            },
            "youtubeVideo": { # YouTube video item. # YouTube video material.
              "title": "A String", # Title of the YouTube video. Read-only.
              "id": "A String", # YouTube API resource ID.
              "alternateLink": "A String", # URL that can be used to view the YouTube video. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the YouTube video. Read-only.
            },
            "form": { # Google Forms item. # Google Forms material.
              "title": "A String", # Title of the Form. Read-only.
              "responseUrl": "A String", # URL of the form responses document. Only set if respsonses have been recorded and only when the requesting user is an editor of the form. Read-only.
              "thumbnailUrl": "A String", # URL of a thumbnail image of the Form. Read-only.
              "formUrl": "A String", # URL of the form.
            },
          },
        ],
        "assigneeMode": "A String", # Assignee mode of the announcement. If unspecified, the default value is `ALL_STUDENTS`.
        "courseId": "A String", # Identifier of the course. Read-only.
        "creationTime": "A String", # Timestamp when this announcement was created. Read-only.
        "state": "A String", # Status of this announcement. If unspecified, the default state is `DRAFT`.
        "creatorUserId": "A String", # Identifier for the user that created the announcement. Read-only.
        "scheduledTime": "A String", # Optional timestamp when this announcement is scheduled to be published.
        "updateTime": "A String", # Timestamp of the most recent change to this announcement. Read-only.
        "text": "A String", # Description of this announcement. The text must be a valid UTF-8 string containing no more than 30,000 characters.
        "individualStudentsOptions": { # Assignee details about a coursework/announcement. This field is set if and only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. # Identifiers of students with access to the announcement. This field is set only if `assigneeMode` is `INDIVIDUAL_STUDENTS`. If the `assigneeMode` is `INDIVIDUAL_STUDENTS`, then only students specified in this field can see the announcement.
          "studentIds": [ # Identifiers for the students that have access to the coursework/announcement.
            "A String",
          ],
        },
        "alternateLink": "A String", # Absolute link to this announcement in the Classroom web UI. This is only populated if `state` is `PUBLISHED`. Read-only.
        "id": "A String", # Classroom-assigned identifier of this announcement, unique per course. Read-only.
      }