func ConstructMuxVar(name string, pattern string) string {
	if pattern == "" {
		return "{" + name + "}"
	}

	return "{" + name + ":" + pattern + "}"
}
func ConstructMuxVar(name string, pattern string) string {
	if pattern == "" {
		return "{" + name + "}"
	}

	return "{" + name + ":" + pattern + "}"
}
// ConstructMuxVar constructs the mux var that is used in the gorilla/mux styled
// path, example: {id}, {id:[0-9]+}.