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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def reverse(self, url, args=None, kwargs=None):
        ''' Reverse an url taking self.app_name in account '''
        return reverse("%s:%s" % (self.instance_name, url,),
                        args=args,
                        kwargs=kwargs,
                        current_app = self.app_name)