human
Solve the following python programming problem given the following code:
def invoke(self, context) : 
    try : 
        method = getattr (self.controller, ec2utils.camelcase_to_underscore (self.action)) 
except AttributeError : 
        LOG.exception (_ ('Unsupported API request: action = %(action)s'), { 
            'action' : self.action, 
}) 
        raise exception.InvalidRequest () 
args = ec2utils.dict_from_dotted_str (self.args.items ()) 
    def convert_dicts_to_lists(args) : 
        if (not isinstance (args, dict)) : 
            return args 
for key in args.keys () : 
            if isinstance (args [key], dict) : 
                if (args [key] == { 
                    
}) : 
                    continue 
first_subkey = next (six.iterkeys (args [key])) 
                if first_subkey.isdigit () : 
                    s = args [key] 
                    args [key] = [convert_dicts_to_lists (s [k]) for k in sorted (s)] 
else : 
                    if ((first_subkey == 'value') and (len (args [key]) == 1)) : 
                        args [key] = args [key] ['value'] 
return args 
args = convert_dicts_to_lists (args) 
    result = method (context, ** args) 
    return self._render_response (args, context.request_id) 

    
    

    Fix the buggy line: return self._render_response (args, context.request_id)
assistant
#Here is Python program to fix the buggy line: return self.

return self._render_response (result, context.request_id)