Method clearPreviousPongTimer

packages/rtm-api/src/KeepAlive.ts:228–232

* Clears the pong timer if its set, otherwise this is a noop.

()

   * Clears the pong timer if its set, otherwise this is a noop.
   */
  private clearPreviousPongTimer(): void {
    if (this.pongTimer !== undefined) {
      clearTimeout(this.pongTimer);
    }
  }

  /**
   * Determines if a giving incoming event can be treated as an acknowledgement for the outstanding ping, and then