{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"FreezeReadGuard::map(tcx.untracked().cstore.read(),"}]}
        FreezeReadGuard::map(tcx.untracked().cstore.read(), |cstore| {
    pub fn from_tcx(tcx: TyCtxt<'_>) -> FreezeReadGuard<'_, CStore> {
            cstore.as_any().downcast_ref::<CStore>().expect("`tcx.cstore` is not a `CStore`")