code: async function release(key) {
      const previousLocks = LOCKS_MAP.get(key) || [];
      const locksLength = previousLocks.length;
  
      log(
        'debug',
        `Releasing the lock on ${key} (queue length was ${locksLength})`,
      );
      previousLocks.pop().release();
    }
docs: Release the lock on the given resource key
  @param  {String}   key  A unique key for the resource to release
  @return {void}