pub trait ProducerCallback<T> {
type Output;
fn callback<P>(self, producer: P) -> Self::Output
where
P: Producer<Item = T>;
}Expand description
The ProducerCallback trait is a kind of generic closure,
analogous to FnOnce. See the corresponding section in
the plumbing README for more details.
Required Associated Types
The type of value returned by this callback. Analogous to
Output from the FnOnce trait.