{"ast_node_type":"function","tokens":[{"end":88,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn create_local_crate_def_id(self, span: Span) -> TyCtxtFeed<'tcx, LocalDefId> {
    /// some queries for it. It will panic if used twice.
        let key = self.untracked().source_span.push(span);