func Register(contentType string, fn Binder) {
	lock.Lock()
	defer lock.Unlock()

	binders[strings.ToLower(contentType)] = fn
}
func Register(contentType string, fn Binder) {
	lock.Lock()
	defer lock.Unlock()

	binders[strings.ToLower(contentType)] = fn
}
func Register ( contentType string , fn Binder ) { lock . Lock ( ) defer lock . Unlock ( ) binders [ strings . ToLower ( contentType ) ] = fn }
// Register maps a request Content-Type (application/json)
// to a Binder.
Register maps a request Content - Type ( application / json ) to a Binder .