code: def check(address):
      if FLAGS.no_checks:
          return
  
      try:
          check_broker_online(address)
      except RuntimeError as e:
          print(
              "Couldn't reach broker at %s. Is it online? (Error: %s)"
              % (address, e)
          )
          sys.exit(1)
  
      try:
          check_nfs()
      except RuntimeError as e:
          print(str(e))
          sys.exit(2)
  
file_path: moolib/examples/sbatch_experiment.py
imports: import argparse
  import ctypes
  import getpass
  import os
  import socket
  import sys
  import coolname
  import moolib
label_desc: Use image node_id 4 for calling a global function with example usage: check(address) without return types