code: def _check_row_table_name(table_name, row):
      
      if row.table is not None and row.table.name != table_name:
          raise TableMismatchError(
              "Row %s is a part of %s table. Current table: %s"
              % (row.row_key, row.table.name, table_name)
          )
docs: Checks that a row belongs to a table.
  
      :type table_name: str
      :param table_name: The name of the table.
  
      :type row: :class:`~google.cloud.bigtable.row.Row`
      :param row: An instance of :class:`~google.cloud.bigtable.row.Row`
                  subclasses.
  
      :raises: :exc:`~.table.TableMismatchError` if the row does not belong to
               the table.