Method activate

packages/app/src/addons/serialize.ts:511–513

* Activate the addon (called by Terminal.loadAddon)

(terminal: ITerminalCore)

   * Activate the addon (called by Terminal.loadAddon)
   */
  public activate(terminal: ITerminalCore): void {
    this._terminal = terminal
  }

  /**
   * Dispose the addon and clean up resources