syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// is converted to the corresponding pattern via `lower_variant_or_leaf`.
context_before:     /// it to `const_to_pat`. Any other path (like enum variants without fields)
context_after:     #[instrument(skip(self), level = "debug")]