def contains_entry(self, key, value):
check_not_none(key, "<STR_LIT>")<EOL>check_not_none(value, "<STR_LIT>")<EOL>key_data = self._to_data(key)<EOL>value_data = self._to_data(value)<EOL>return self._encode_invoke_on_key(multi_map_contains_entry_codec, key_data, key=key_data,<EOL>value=value_data, thread_id=thread_id())<EOL>
Returns whether the multimap contains an entry with the value.

:param key: (object), the specified key.
:param value: (object), the specified value.
:return: (bool), ``true`` if this multimap contains the key-value tuple.