syntax_data: {"ast_node_type":"function","tokens":[{"end":74,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
context_before: impl std::fmt::Debug for HasTypeFlagsVisitor {
context_after:         self.flags.fmt(fmt)