{"ast_node_type":"function","tokens":[{"end":74,"kind":"keyword","start":0,"text":"fn"}]}
    fn new(arena: &'tcx WorkerLocal<Arena<'tcx>>) -> CtxtInterners<'tcx> {
impl<'tcx> CtxtInterners<'tcx> {
        // Default interner size - this value has been chosen empirically, and may need to be adjusted