get() {
    const path = this.__paths[0];
    if (!path) {
      throw Error(
        'You cannot call "get" on a collection with no paths. ' +
        'Instead, check the "length" property first to verify at least 1 path exists.'
      );
    }
    return path.get.apply(path, arguments);
  }
Proxies to NodePath#get of the first path.

@param {string|number} ...fields