func (r *Request) Auth(auth *Auth) *Request {
	if len(auth.AccessToken) != 0 {
		r.params.Add("access_token", auth.AccessToken)
	}
	if len(auth.Key) != 0 {
		r.params.Add("key", auth.Key)
	}
	return r
}
// Auth provides authentication data with the request. Only the fields in auth
// that contain valid data will included in the final URL.
Auth provides authentication data with the request. Only the fields in auth
that contain valid data will included in the final URL.
// Auth provides authentication data with the request . Only the fields in auth // that contain valid data will included in the final URL .
func (r *Request) Auth(auth *Auth) *Request {
	if len(auth.AccessToken) != 0 {
		r.params.Add("access_token", auth.AccessToken)
	}
	if len(auth.Key) != 0 {
		r.params.Add("key", auth.Key)
	}
	return r
}
func ( r * Request ) Auth ( auth * Auth ) * Request { if len ( auth . AccessToken ) != 0 { r . params . Add ( " " , auth . AccessToken ) } if len ( auth . Key ) != 0 { r . params . Add ( " " , auth . Key ) } return r }
Auth provides authentication data with the request.
Auth provides authentication data with the request .