Type Alias Refs 

pub type Refs<'a> = NameRefs<'a>;

What a $name in a prop resolves through while a table is parsed: the core’s token lookup for the running origin, plus the names that did not resolve, which are raised as unknown-token warnings afterwards. A prop whose name resolves to nothing is left out and keeps its default, rather than becoming an explicit transparent or zero.

Aliased Type

pub struct Refs<'a> { /* private fields */ }