{"ast_node_type":"variable","tokens":[{"end":69,"kind":"keyword","start":0,"text":"let"}]}
        let num_provided_lt_args = self.num_provided_lifetime_args();
    fn suggest_removing_args_or_generics(&self, err: &mut Diag<'_, impl EmissionGuarantee>) {
        let num_provided_type_const_args = self.num_provided_type_or_const_args();