human
Solve the following python programming problem given the following code:
def _no_wr_finalize(self) : 
    finalize_fairy = pool._finalize_fairy 
    def assert_no_wr_callback(connection, connection_record, pool, ref, echo, fairy = None) : 
        if (fairy is None) : 
            raise AssertionError ('finalize fairy was called as a weakref callback') 
return finalize_fairy (connection, connection_record, pool, ref, echo, fairy) 
return patch.object (pool, '_finalize_fairy', self) 

    
    

    Fix the buggy line: return patch.object (pool, '_finalize_fairy', self)
assistant
#Here is Python code to fix the buggy line: return patch.

return patch.object (pool, '_finalize_fairy', def assert_no_wr_callback()