code: def tests_when_releaselevel_not_final(self):
      v = FakeVersionInfo(3, 4, 2, "beta", 4)
      assert format_full_version(v) == "3.4.2b4"
  
imports: import collections
  import itertools
  import os
  import platform
  import sys
  from typing import cast
  import pytest
  from packaging._parser import Node
  from packaging.markers import InvalidMarker, Marker, UndefinedComparison, default_environment, format_full_version
label_desc: Use image node_id 4 for calling the TestDefaultEnvironment obj's underlying member method code with example usage: obj.tests_when_releaselevel_not_final() without return types