human
Solve the following python programming problem given the following code:
@ defer.inlineCallbacks 
def test_using_processor(self) : 
    processed = list () 
    registered = list () 
    stub_poller = StubSocketPoller ((lambda feeder, socket : registered.append (feeder))) 
    class Provider () : 
        def add_consumer(self, resource_dependency) : 
            resource_dependency.on_resource_ready (processed.append) 
provider = Provider () 
    self.resource_manager.register ('pipeline.pipeline_name', provider) 
    self.resource_manager.register ('zmq.socket.socket_name', provider) 
    feeder = providers.ZMQProcessorFeeder (stub_poller, processor_config = 'pipeline.pipeline_name', socket_name = 'socket_name') 
    feeder.configure (self.runtime_environment) 
    self.dependency_manager.resolve_initial_states () 
    self.assertIn (feeder, self) 
    del registered [:] 
    expected_processed = ['foo', 'bar', 'baz'] 
    message_batch = ['foo', 'bar', 'baz'] 
    (yield feeder.handle_messages (message_batch)) 
    self.assertEquals (processed, expected_processed) 
    self.assertIn (feeder, registered) 

    
    

    Fix the buggy line: self.assertIn (feeder, self)
assistant
#Here is Python code to fix the buggy line: self.

self.assertIn (feeder, registered)