import { Pin } from '../Pin';
import { PinDataMoment } from './PinDataMoment';
import { PinType } from './PinType';
export declare function watchRefPin(type: 'ref_input' | 'ref_output', pinType: PinType, pinId: string, pin: Pin<any>, callback: (moment: PinDataMoment) => void): () => void;
