Function rustfmt_nightly::items::rewrite_type_alias

pub(crate) fn rewrite_type_alias<'a, 'b>(
    ty_alias_kind: &TyAlias,
    context: &RewriteContext<'a>,
    indent: Indent,
    visitor_kind: &ItemVisitorKind<'b>,
    span: Span
) -> Option<String>