code: def test_basics_pypengl():
      """Test pyopengl GL backend for basic functionality."""
      _test_basics("pyopengl2")
  
file_path: vispy/vispy/gloo/gl/tests/test_basics.py
imports: import sys
  from vispy.app import Canvas
  from numpy.testing import assert_almost_equal
  from vispy.testing import requires_application, requires_pyopengl, SkipTest, run_tests_if_main, assert_equal, assert_true
  from vispy.util import use_log_level
  from vispy.gloo import gl
label_desc: Use image node_id 4 for calling a global function with example usage: test_basics_pypengl() without return types