# Ad Exchange Seller API . adunits . customchannels

## Instance Methods

List all custom channels which the specified ad unit belongs to.

Retrieves the next page of results.

### Method Details

`list(adClientId, adUnitId, pageToken=None, maxResults=None)`

    List all custom channels which the specified ad unit belongs to.

    Args:
      adClientId: string, Ad client which contains the ad unit. (required)
      adUnitId: string, Ad unit for which to list custom channels. (required)
      pageToken: string, A continuation token, used to page through custom channels. To retrieve the next page, set this parameter to the value of "nextPageToken" from the previous response.
      maxResults: integer, The maximum number of custom channels to include in the response, used for paging.

    Returns:
      An object of the form:

        {
        "nextPageToken": "A String", # Continuation token used to page through custom channels. To retrieve the next page of results, set the next request's "pageToken" value to this.
        "items": [ # The custom channels returned in this list response.
          {
            "kind": "adexchangeseller#customChannel", # Kind of resource this is, in this case adexchangeseller#customChannel.
            "code": "A String", # Code of this custom channel, not necessarily unique across ad clients.
            "targetingInfo": { # The targeting information of this custom channel, if activated.
              "location": "A String", # The locations in which ads appear. (Only valid for content and mobile content ads). Acceptable values for content ads are: TOP_LEFT, TOP_CENTER, TOP_RIGHT, MIDDLE_LEFT, MIDDLE_CENTER, MIDDLE_RIGHT, BOTTOM_LEFT, BOTTOM_CENTER, BOTTOM_RIGHT, MULTIPLE_LOCATIONS. Acceptable values for mobile content ads are: TOP, MIDDLE, BOTTOM, MULTIPLE_LOCATIONS.
              "adsAppearOn": "A String", # The name used to describe this channel externally.
              "siteLanguage": "A String", # The language of the sites ads will be displayed on.
              "description": "A String", # The external description of the channel.
            },
            "id": "A String", # Unique identifier of this custom channel. This should be considered an opaque identifier; it is not safe to rely on it being in any particular format.
            "name": "A String", # Name of this custom channel.
          },
        ],
        "kind": "adexchangeseller#customChannels", # Kind of list this is, in this case adexchangeseller#customChannels.
        "etag": "A String", # ETag of this response for caching purposes.
      }

`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.