human
Solve the following python programming problem given the following code:
def _test_postrelease_after() : 
    "
    The postrelease_after hook is by far the trickiest part of this releaser
    hook, so it's helpful for development to have a simple test function for
    it.

    This test monkey-patches _ZopeProxy so that the update() method just prints
    the contents that would be updated, without actually doing so.
    " 
    def update(self, content) : 
        print_ (content) 
        return 
_ZopeProxy.update = test_releaser 
    test_releaser = ReleaseManager () 
    test_releaser.history_lines = [l.rstrip ('
') for l in open ('CHANGES.txt').readlines ()] 
    test_releaser.postreleaser_after ({ 
        'name' : 'pyfits', 
}) 

    
    

    Fix the buggy line: _ZopeProxy.update = test_releaser
assistant
#Here is Python code to fix the buggy line: _ZopeProxy.

_ZopeProxy.update = update