{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"FutureDropPollShim(DefId,"}]}
    FutureDropPollShim(DefId, Ty<'tcx>, Ty<'tcx>),
    /// Proxy shim for async drop of future (def_id, proxy_cor_ty, impl_cor_ty)