docs: def find_by_user(user_id, _connection=None, page_size=100, page_number=0,
          sort_by=enums.DEFAULT_SORT_BY, sort_order=enums.DEFAULT_SORT_ORDER):
          """
          List all videos uploaded by a certain user.
          """
          return connection.ItemResultSet('find_videos_by_user_id',
              Video, _connection, page_size, page_number, sort_by, sort_order,
              user_id=user_id)