code: def test_suite():
      return unittest.makeSuite(PyPIRCCommandTestCase)
  
imports: import sys
  import os
  import unittest
  import tempfile
  import shutil
  from distutils.core import PyPIRCCommand
  from distutils.core import Distribution
  from distutils.log import set_threshold
  from distutils.log import WARN
  from distutils.tests import support
  from test.test_support import run_unittest
label_desc: Use image node_id 1 for calling a global function with example usage: test_suite() and returns: unittest