Method relaunch

src/node/wrapper.ts:201–203

* Notify the parent process that it should relaunch the child.

(version: string)

   * Notify the parent process that it should relaunch the child.
   */
  public relaunch(version: string): void {
    this.send({ type: "relaunch", version })
  }

  /**
   * Send a message to the parent.