code: def blue_position(pattern):
      assert 0 <= pattern <= 3
      return pattern // 2, pattern % 2
  
file_path: DALI/dali/test/python/debayer_test_utils.py
imports: import numpy
  from scipy.signal import convolve2d
label_desc: Use image node_id 1 for calling a global function with example usage: blue_position(pattern) and returns: unknown,  unknown