{"ast_node_type":"variable","tokens":[{"end":80,"kind":"keyword","start":0,"text":"let"}]}
        let future_projection = crate::AliasTy::Projection(crate::ProjectionTy {
            LangItem::FutureOutput.resolve_type_alias(self.db, self.resolver.krate())?;
            associated_ty_id: to_assoc_type_id(future_output),