syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"(MaybeReachable::Reachable(set),"}]}
source_snippet:             (MaybeReachable::Reachable(set), MaybeReachable::Unreachable) => {
context_before:             }
context_after:                 write!(f, "\u{001f}-")?;