notify_(pinchEvent) {
    let listeners = this.listeners_.get(pinchEvent.type);

    for (let l of listeners)
      l(pinchEvent);
  }
/**
   * Call the relevant listeners with the given |pinchEvent|.
   *
   * @param {!Object} pinchEvent The event to notify the listeners of.
   * @private
   */
Call the relevant listeners with the given |pinchEvent|.
@param {!Object} pinchEvent The event to notify the listeners of.
@private
Call the relevant listeners with the given |pinchEvent| . @param { !Object } pinchEvent The event to notify the listeners of . @private
notify_(pinchEvent) {
    let listeners = this.listeners_.get(pinchEvent.type);
    for (let l of listeners)
      l(pinchEvent);
  }
notify_ ( pinchEvent ) { let listeners = this . listeners_ . get ( pinchEvent . type ) ; for ( let l of listeners ) l ( pinchEvent ) ; }
Call the relevant listeners with the given |pinchEvent|.
Call the relevant listeners with the given |pinchEvent| .