{"ast_node_type":"variable","tokens":[{"end":89,"kind":"keyword","start":0,"text":"let"}]}
        let inputs = self.arena.alloc_from_iter((0..decl_param_count).map(|arg| hir::Ty {
        let decl_param_count = param_count - c_variadic as usize;
            hir_id: self.next_id(),