code: def test_plot_3d_spherical():
      from sympy.plotting.pygletplot import PygletPlot
  
      p = PygletPlot(
          1,
          [x, 0, 6.282, 4],
          [y, 0, 3.141, 4],
          "mode=spherical;style=wireframe",
          visible=False,
      )
      p.wait_for_calculations()
  
file_path: sympy/sympy/plotting/pygletplot/tests/test_plotting.py
imports: from sympy.external.importtools import import_module
  from sympy.core.symbol import symbols
  from sympy.functions.elementary.exponential import log
  from sympy.functions.elementary.trigonometric import cos, sin
label_desc: Use image node_id 7 for calling a global function with example usage: test_plot_3d_spherical() without return types