docs: function () {
      var callbacks = this._callbacks;
      var contexts = this._contexts;
      if (callbacks) {
        !(callbacks.length === contexts.length) ? "development" !== 'production' ? invariant(false, 'Mismatched list of contexts in callback queue') : _prodInvariant('24') : void 0;
        this._callbacks = null;
        this._contexts = null;
        for (var i = 0; i < callbacks.length; i++) {
          callbacks[i].call(contexts[i]);
        }
        callbacks.length = 0;
        contexts.length = 0;
      }
    }