human
Solve the following python programming problem given the following code:
def get_keys(self) : 
    def remove_first_index(xpath) : 
        return re.sub ('\\[1\\]', '', xpath) 
return [remove_first_index (self) for header in self.get_headers ()] 

    
    

    Fix the buggy line: return [remove_first_index (self) for header in self.get_headers ()]
assistant
#Here is Python program to fix the buggy line: return [remove_first_index (self) for header in self.

return [remove_first_index (header) for header in self.get_headers ()]