human
Solve the following python programming problem given the following code:
def _gh(self, expUrl, filename) : 
    def opener(url) : 
        self.assertEquals (expUrl, url) 
        return open (filename) 
return github.GitHub (fetcher = expUrl) 

    
    

    Fix the buggy line: return github.GitHub (fetcher = expUrl)
assistant
#Here is Python program to fix the buggy line: return github.

return github.GitHub (fetcher = def opener()