pub trait Vertices<P>: Sized where
P: IntoVertices, {
fn vertices(self) -> Decompose<Self, P, P::Vertex, P::Output>ⓘNotable traits for Decompose<I, P, Q, R>impl<I, P, Q, R> Iterator for Decompose<I, P, Q, R> where
I: Iterator<Item = P>,
R: IntoIterator<Item = Q>, type Item = Q;;
}