jmpinit

# https://towardsdatascience.com/blender-2-8-grease-pencil-scripting-and-generative-art-cbbfd3967590

import bpy
import math
import numpy as np

def get_grease_pencil(gpencil_obj_name='GPencil') -> bpy.types.GreasePencil:
    """
    Return the grease-pencil object with the given name. Initialize one if not already present.
    :param gpencil_obj_name: name/key of the grease pencil object in the scene