syntax_data: {"ast_node_type":"import","tokens":[{"end":87,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// If you need to extend the span, use [`find_ancestor_inside_same_ctxt`] instead,
context_before:     /// The span returned by this method may have a different [`SyntaxContext`] than `outer`.
context_after:     /// because joining spans with different syntax contexts can create unexpected results.