syntax_data: {"ast_node_type":"import","tokens":[{"end":67,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Don't use this outside of `DiagCtxtInner::emit_diagnostic`!
context_before: impl ErrorGuaranteed {
context_after:     #[deprecated = "should only be used in `DiagCtxtInner::emit_diagnostic`"]