human
Solve the following python programming problem given the following code:
def do_discard(self, line) : 
    'discard <peer>
        eg. discard sw1
        ' 
    def f(p, args) : 
        print (p.discard_changes ()) 
self._request (line, line) 

    
    

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

self._request (line, def f()