code: def __init__(self):
      Matrix.__init__(self)
      self._matrix[...] = [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
  
imports: import re
  import math
  import numpy
label_desc: Use image node_id 1 to create a new Identity object from inherited base classes: Matrix with example: obj = Identity()