{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"FreezeWriteGuard::map(tcx.untracked().cstore.write(),"}]}
        FreezeWriteGuard::map(tcx.untracked().cstore.write(), |cstore| {
    pub fn from_tcx_mut(tcx: TyCtxt<'_>) -> FreezeWriteGuard<'_, CStore> {
            cstore.untracked_as_any().downcast_mut().expect("`tcx.cstore` is not a `CStore`")