{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"UpvarId"}]}
        UpvarId { var_path: UpvarPath { hir_id: var_hir_id }, closure_expr_id: closure_def_id }
    pub fn new(var_hir_id: HirId, closure_def_id: LocalDefId) -> UpvarId {
    }