code: def list_projects(self, max_results=None, page_token=None, retry=DEFAULT_RETRY):
          
          return page_iterator.HTTPIterator(
              client=self,
              api_request=functools.partial(self._call_api, retry),
              path="/projects",
              item_to_value=_item_to_project,
              items_key="projects",
              page_token=page_token,
              max_results=max_results,
          )
docs: List projects for the project associated with this client.
  
          See
          https://cloud.google.com/bigquery/docs/reference/rest/v2/projects/list
  
          :type max_results: int
          :param max_results: (Optional) maximum number of projects to return,
                              If not passed, defaults to a value set by the API.
  
          :type page_token: str
          :param page_token:
              (Optional) Token representing a cursor into the projects. If
              not passed, the API will return the first page of projects.
              The token marks the beginning of the iterator to be returned
              and the value of the ``page_token`` can be accessed at
              ``next_page_token`` of the
              :class:`~google.api_core.page_iterator.HTTPIterator`.
  
          :type retry: :class:`google.api_core.retry.Retry`
          :param retry: (Optional) How to retry the RPC.
  
          :rtype: :class:`~google.api_core.page_iterator.Iterator`
          :returns: Iterator of :class:`~google.cloud.bigquery.client.Project`
                    accessible to the current client.