pub struct Fix<F: Functor>(pub Box<F::Layer<Fix<F>>>);
heap allocated fix point of some Functor
0: Box<F::Layer<Fix<F>>>
TypeId
self
Returns the argument unchanged.
Calls U::from(self).
U::from(self)
That is, this conversion is whatever the implementation of From<T> for U chooses to do.
From<T> for U