liquidate.bluebird.js

function liquidate(obj, F = Promise.getNewLibraryCopy()) {
  const promised = F.promisifyAll({__proto__: Object.create(obj)});
  Object.assign(F.prototype, whenReadyAll.call(obj, promised)); // add the API  
  return promised;
  function whenReadyAll(obj, target = {}) {
    for(const prop in obj) target[prop] = (...args) => this.then(() => obj[prop](...args));
    return target;
  }
}