code: def remove_file(test_id, filename):
      cmd = f"if [ -f {filename} ] ; then rm -v {filename}; fi"
      print(f"{test_id} cmd: {cmd}")
      subprocess.run(
          cmd, shell=True, check=False, executable="/bin/bash"
      )
  
imports: import unittest
  import subprocess
  import os
  import re
  from .test_common import BaseTestCase
label_desc: Use image node_id 1 for calling a global function with example usage: remove_file(test_id, filename) without return types