Method waitUntilChildrenAre

src/binder.ts:677–679

* Returns a promise that resolves when all children this node have reached * at least the given state.

(state: TargetState)

   * at least the given state.
   */
  public async waitUntilChildrenAre(state: TargetState) {
    await Promise.all([...this._children].map(c => c.waitUntil(state)));
  }

  /**
   * Returns an iterator that lists all targets in the tree.