code: def test_axes_actor_sphere_rad(axes_actor):
      axes_actor.sphere_radius = 0.8
      assert axes_actor.sphere_radius == 0.8
  
imports: import numpy
  import pytest
  import pyvista
label_desc: Use image node_id 16 for calling a global function with example usage: test_axes_actor_sphere_rad(axes_actor) without return types