{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"//"}]}
        // FIXME(richkadel): If/when migrating the MIR graphviz to this generic implementation,
        let cluster = if self.is_subgraph { "cluster_" } else { "" }; // Print border around graph
        // prepend "Mir_" to the graphviz_safe_def_name(def_id)