Function unsubscribe

lib/helpers/composeSignals.js:36–46

()

    }, timeout);

  const unsubscribe = () => {
    if (!signals) { return; }
    timer && clearTimeout(timer);
    timer = null;
    signals.forEach((signal) => {
      signal.unsubscribe
        ? signal.unsubscribe(onabort)
        : signal.removeEventListener('abort', onabort);
    });
    signals = null;
  };

  signals.forEach((signal) => signal.addEventListener('abort', onabort, { once: true }));