{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"FatArrow"}]}
                        FatArrow | Comma | Eq | Or => IsInFollow::Yes,
                    TokenTree::Token(token) => match token.kind {
                        Ident(name, IdentIsRaw::No) if name == kw::If || name == kw::In => {