code: def list_tables(self):
          
          table_list_pb = self._client.table_admin_client.list_tables(self.name)
  
          result = []
          for table_pb in table_list_pb:
              table_prefix = self.name + "/tables/"
              if not table_pb.name.startswith(table_prefix):
                  raise ValueError(
                      "Table name {} not of expected format".format(table_pb.name)
                  )
              table_id = table_pb.name[len(table_prefix) :]
              result.append(self.table(table_id))
  
          return result
docs: List the tables in this instance.
  
          For example:
  
          .. literalinclude:: snippets.py
              :start-after: [START bigtable_list_tables]
              :end-before: [END bigtable_list_tables]
  
          :rtype: list of :class:`Table <google.cloud.bigtable.table.Table>`
          :returns: The list of tables owned by the instance.
          :raises: :class:`ValueError <exceptions.ValueError>` if one of the
                   returned tables has a name that is not of the expected format.