code: def parallel(self):
      return Parallel(
          main_ip=os.environ.get("MF_PARALLEL_MAIN_IP", "127.0.0.1"),
          num_nodes=int(os.environ.get("MF_PARALLEL_NUM_NODES", "1")),
          node_index=int(os.environ.get("MF_PARALLEL_NODE_INDEX", "0")),
      )
  
imports: from collections import namedtuple
  import os
  from typing import Any, Optional
  from metaflow.metaflow_config import TEMPDIR
label_desc: Use image node_id 18 for calling the Current obj's underlying member method code with example usage: obj.parallel() and returns: Parallel