human
Solve the following python programming problem given the following code:
def make_template_name(self, obj) : 
    "
        Return the canonical template name for an object instance.

        This method converts Python-style class names (PEP 8's recommended
        CamelCase, aka CapWords) to lower_case_with_underscords.  Here
        is an example with code:

        >>> class HelloWorld(object):
        ...     pass
        >>> hi = HelloWorld()
        >>>
        >>> locator = Locator()
        >>> locator.make_template_name(hi)
        'hello_world'

        " 
    template_name = self.__class__.__name__ 
    def repl(match) : 
        return ('_' + match.group (0).lower ()) 
return re.sub ('[A-Z]', repl, template_name) [1 :] 

    
    

    Fix the buggy line: template_name = self.__class__.__name__
assistant
#Here is Python code to fix the buggy line: template_name = self.

template_name = obj.__class__.__name__