syntax_data: {"ast_node_type":"other","tokens":[{"end":34,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// - [`Span::from_expansion`]
context_before:     /// - [`Self::find_ancestor_not_from_extern_macro`]
context_after:     pub fn find_ancestor_not_from_macro(mut self) -> Option<Span> {