pub trait AsEither<L, R> {
fn as_either<'a>(&'a self) -> Either<&'a L, &'a R>;
}A generic trait for converting a value to a Either
fn as_either<'a>(&'a self) -> Either<&'a L, &'a R>Convert to the either type
Prefix searches with a type followed by a colon (e.g.
fn:) to restrict the search to a given type.
Accepted types are: fn, mod,
struct (or str), enum,
trait, typedef (or
tdef).