human
Solve the following python programming problem given the following code:
@ contextlib.contextmanager 
def _assert_makers(self, engines) : 
    writer_session = mock.Mock (connection = mock.Mock (return_value = engines.writer._assert_connection)) 
    writer_maker = mock.Mock (return_value = writer_session) 
    if self.slave_uri : 
        async_reader_session = mock.Mock (connection = mock.Mock (return_value = engines.async_reader._assert_connection)) 
        async_reader_maker = mock.Mock (return_value = async_reader_session) 
else : 
        async_reader_session = writer_session 
        async_reader_maker = writer_maker 
if self.synchronous_reader : 
        reader_maker = async_reader_maker 
else : 
        reader_maker = writer_maker 
makers = AssertDataSource (writer_maker, reader_maker, async_reader_maker) 
    def get_maker(engine, **kw) : 
        if (engine is engines.writer) : 
            return makers.writer 
else : 
            if (engine is engines.reader) : 
                return makers.reader 
else : 
                if (engine is engines.async_reader) : 
                    return makers.async_reader 
else : 
                    assert False 
maker_factories = mock.Mock (side_effect = get_maker) 
    maker_factories (autocommit = True, engine = engines.writer, expire_on_commit = False) 
    if self.slave_uri : 
        maker_factories (autocommit = True, engine = engines.async_reader, expire_on_commit = False) 
(yield makers) 
    self.assertEqual (maker_factories.mock_calls, self.get_maker.mock_calls) 
    for sym in [enginefacade._WRITER, enginefacade._READER, enginefacade._ASYNC_READER] : 
        self.assertEqual (makers.element_for_writer (self).mock_calls, self.makers.element_for_writer (sym).mock_calls) 

    
    

    Fix the buggy line: self.assertEqual (makers.element_for_writer (self).mock_calls, self.makers.element_for_writer (sym).mock_calls)
assistant
#Here is Python program to fix the buggy line: self.

self.assertEqual (makers.element_for_writer (sym).mock_calls, self.makers.element_for_writer (sym).mock_calls)