function runCallEffect(_ref4, effectId, cb) {
    var context = _ref4.context,
        fn = _ref4.fn,
        args = _ref4.args;

    var result = void 0;
    // catch synchronous failures; see #152
    try {
      result = fn.apply(context, args);
    } catch (error) {
      return cb(error, true);
    }
    return _utils.is.promise(result) ? resolvePromise(result, cb) : _utils.is.iterator(result) ? resolveIterator(result, effectId, fn.name, cb) : cb(result);
  }
Schedule the put in case another saga is holding a lock.
      The put will be executed atomically. ie nested puts will execute after
      this put has terminated.