Method confirm

node/src/streaming.ts:146–154

* Answer a `confirm_required` frame. `accept=true` resumes the stream onto the * same id; `accept=false` ends it with a rejected `done`.

(token: string, accept: boolean)

   * same id; `accept=false` ends it with a rejected `done`.
   */
  async confirm(token: string, accept: boolean): Promise<void> {
    await this.source.answer(
      create(EnvelopeSchema, {
        id: this.source.id,
        kind: Envelope_Kind.ANSWER,
        payload: { case: "confirmAnswer", value: { token, accept } },
      }),
    );
  }

  /**
   * Drain to the final text (the `done` frame's text, else accumulated event