human
Solve the following python programming problem given the following code:
def test_save(self) : 
    req_obj = fake_request_spec.fake_spec_obj () 
    def _test_save_args(self2, context, instance_uuid, changes) : 
        self._check_update_primitive (req_obj, changes) 
        changes ['id'] = 42 
        return changes 
with mock.patch.object (request_spec.RequestSpec, '_save_in_db', self) : 
        req_obj.save () 

    
    

    Fix the buggy line: with mock.patch.object (request_spec.RequestSpec, '_save_in_db', self) :
assistant
#Here is Python code to fix the buggy line: with mock.

with mock.patch.object (request_spec.RequestSpec, '_save_in_db', def _test_save_args() :