code: def requires_pyopengl():
      skip = not has_pyopengl()
      return skipif(skip, reason="Requires PyOpenGL")
  
imports: from __future__ import print_function
  import numpy
  import sys
  import os
  import inspect
  import gc
  import pytest
  import functools
  from packaging.version import Version
  from ..util.check_environment import has_backend
label_desc: Use image node_id 14 for calling a global function with example usage: requires_pyopengl() and returns: skipif