Method enqueue

src/bridge/flushGate.ts:46–50

* If flush is active, queue the items and return true. * If flush is not active, return false (caller should send directly).

(...items: T[])

   * If flush is not active, return false (caller should send directly).
   */
  enqueue(...items: T[]): boolean {
    if (!this._active) return false
    this._pending.push(...items)
    return true
  }

  /**
   * Discard all queued items (permanent transport close).