code: def test_actor_position(actor):
      assert actor.position == (0, 0, 0)
      position = (2, 2, 2)
      actor.position = position
      assert actor.position == position
  
imports: import platform
  import numpy
  import pytest
  import vtk
  import pyvista
  from pyvista import examples
label_desc: Use image node_id 13 for calling a global function with example usage: test_actor_position(actor) without return types