code: def test__get_system_version(self):
      self.assertTrue(
          platform.mac_ver()[0].startswith(
              _osx_support._get_system_version()
          )
      )
  
imports: import os
  import platform
  import stat
  import sys
  import unittest
  from test.support import os_helper
  import _osx_support
label_desc: Use image node_id 6 for calling the Test_OSXSupport obj's underlying member method code with example usage: obj.test__get_system_version() without return types