{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"right:"}]}
        right: &ImmTy<'tcx, M::Provenance>,
        left: &ImmTy<'tcx, M::Provenance>,
    ) -> InterpResult<'tcx, ImmTy<'tcx, M::Provenance>> {