code: def _call(*args, **kwargs):
      # TODO: replace "universal_newlines" with "text" once 3.6 support is dropped
      kwargs["universal_newlines"] = True
      try:
          return subprocess.check_output(*args, **kwargs).splitlines()
      except subprocess.CalledProcessError:
          return []
  
imports: import argparse
  import os
  import subprocess
label_desc: Use image node_id 1 for calling a global function with example usage: _call() and returns: subprocess, list