human
Solve the following python programming problem given the following code:
def prepare(self, concept) : 
    "
        Implement L{iimaginary.IEventObserver.prepare} to format an L{IConcept}
        into a VT102-format byte string, capturing whatever encapsulated world
        state as it exists right now.

        @return: a 0-argument callable that will actually send the
            VT102-formatted string to this L{Player}'s protocol, if it still
            has one when it is called.
        " 
    stuff = concept.vt102 (send.actor) 
    def send() : 
        if (self.proto is not None) : 
            self.send (stuff) 
return send 

    
    

    Fix the buggy line: stuff = concept.vt102 (send.actor)
assistant
#Here is Python code to fix the buggy line: stuff = concept.

stuff = concept.vt102 (self.actor)