{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"HirPlaceBase::Upvar(upvar_id)"}]}
            HirPlaceBase::Upvar(upvar_id) => upvar_id.var_path.hir_id,
        match self.place.base {
            base => bug!("Expected upvar, found={:?}", base),