message: Fix syntax typo in `effects` module
diff: @@ -172,7 +172,7 @@ impl<T: 'static + Send> Responder<T> {
  #[cfg(test)]
  #[inline]
  pub(crate) fn create(sender: oneshot::Sender<T>) -> Self {
  - Responder::new { sender }
  + Responder::new(sender)
  }
  }
  