code: def __init__(self, mesh):
      self.output = mesh  # Expected PyVista mesh type
      # default parameters
      self.kwargs = {
          "radius": 0.5,
          "theta_resolution": 30,
          "phi_resolution": 30,
      }
  
imports: import pyvista
label_desc: Use image node_id 1 to create a new MyCustomRoutine object  with example: obj = MyCustomRoutine(mesh)