pub type MappedSequence<S, T, U> = <Mapped<S, T, U> as GenericSequence<U>>::Sequence;Expand description
Accessor type for a mapped generic sequence
NOTE: The choice to use the Sequence associated type here instead of Mapped
is due to only the Sequence type being guaranteed to implement FromIterator.
However, this does lead to some oddity where FallibleGenericSequence::from_fallible_iter
is implemented on Mapped, but returns the Sequence/MappedSequence type. Same difference, though.