human
Solve the following python programming problem given the following code:
def test_returnValueNonLocalWarning(self) : 
    '
        L{returnValue} will emit a non-local exit warning in the simplest case,
        where the offending function is invoked immediately.
        ' 
    @ inlineCallbacks 
    def inline() : 
        self.mistakenMethod () 
        returnValue (2) 
        (yield 0) 
d = inline () 
    results = [] 
    d.addCallback (self.append) 
    self.assertMistakenMethodWarning (results) 

    
    

    Fix the buggy line: d.addCallback (self.append)
assistant
#Here is Python code to fix the buggy line: d.

d.addCallback (results.append)