syntax_data: {"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"write!(f,"}]}
source_snippet:                 write!(f, "\u{001f}+")?;
context_before:             (MaybeReachable::Unreachable, MaybeReachable::Reachable(set)) => {
context_after:                 set.fmt_with(ctxt, f)