code: def test_default(self):
      output = get_package_version("42foobarnoexist")
      self.assertTrue("UNKNOWN" in output)
  
      output = get_package_version("numpy")
      self.assertFalse("UNKNOWN" in output)
  
imports: from __future__ import annotations
  import unittest
  from monai.utils.module import get_package_version
label_desc: Use image node_id 1 for calling the TestGetVersion obj's underlying member method code with example usage: obj.test_default() without return types