patree.go
func (r *Route) Options(pat string, f ...HandlerFunc) {
	r.HandleMethod(pat, "OPTIONS", f...)
}
func (r *Route) Options(pat string, f ...HandlerFunc) {
	r.HandleMethod(pat, "OPTIONS", f...)
}
func ( r * Route ) Options ( pat string , f ... HandlerFunc ) { r . HandleMethod ( pat , " " , f ... ) }
// Options registers handlers with the given pattern for OPTIONS method
Options registers handlers with the given pattern for OPTIONS method