pub enum Entry<'a, K, V> { Occupied(OccupiedEntry<'a, K, V>), Vacant(VacantEntry<'a, K, V>), }
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