def _try_backup_item(self):
if not self._backup_state:<EOL><INDENT>return False<EOL><DEDENT>item = self.cache.get_item(self.address, self._backup_state)<EOL>if item:<EOL><INDENT>self._object_handler(item.address, item.value, item.state)<EOL>return True<EOL><DEDENT>else:<EOL><INDENT>False<EOL><DEDENT>
Check if a backup item is available in cache and call
        the item handler if it is.

        :return: `True` if backup item was found.
        :returntype: `bool`