syntax_data: {"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// has already assigned it a non-`None` `LocalInfo`.
context_before:     /// `local_info` as its `LocalInfo`, unless `as_temporary`
context_after:     /// Normally, you should use `None` for `local_info`