code: def keypoints():
      return [[20, 30, 40, 50, 1], [20, 30, 60, 80, 2]]
  
file_path: albumentations/tests/conftest.py
imports: import multiprocessing
  import sys
  import warnings
  import numpy
  import pytest
label_desc: Use image node_id 6 for calling a global function with example usage: keypoints() and returns: list