code: def test_load_sphere():
      """Loads sphere ply mesh"""
      mesh = examples.load_sphere()
      assert mesh.n_points
  
file_path: pyvista/tests/examples/test_examples.py
imports: import numpy
  import pytest
  import pyvista
  from pyvista import examples
label_desc: Use image node_id 4 for calling a global function with example usage: test_load_sphere() without return types