code: def list_sinks(self, page_size=None, page_token=None):
          
          return self.sinks_api.list_sinks(self.project, page_size, page_token)
docs: List sinks for the project associated with this client.
  
          See
          https://cloud.google.com/logging/docs/reference/v2/rest/v2/projects.sinks/list
  
          :type page_size: int
          :param page_size:
              Optional. The maximum number of sinks in each page of results from
              this request. Non-positive values are ignored. Defaults to a
              sensible value set by the API.
  
          :type page_token: str
          :param page_token:
              Optional. If present, return the next batch of sinks, using the
              value, which must correspond to the ``nextPageToken`` value
              returned in the previous response.  Deprecated: use the ``pages``
              property of the returned iterator instead of manually passing the
              token.
  
          :rtype: :class:`~google.api_core.page_iterator.Iterator`
          :returns: Iterator of
                    :class:`~google.cloud.logging.sink.Sink`
                    accessible to the current client.