def _get_function_type(self, function_name):
        if (function_name.startswith("Fn::") and
                function_name[4:] in self.inspect_functions):
            return self.inspect_functions[function_name[4:]]
        return (self.inspect_functions['Ref'] if function_name == "Ref"
                else None)
Get all photos from the user or members of the list
dataset/ETHPy150Open cloudtools/troposphere/troposphere/template_generator.py/TemplateGenerator._get_function_type--crossover with--dataset/ETHPy150Open shichao-an/twitter-photos/twphotos/photos.py/TwitterPhotos.get