code: def __init__(self, num=None, axis=0):
      super().__init__()
      self.num = num
      self.axis = axis
  
imports: import numpy
  from keras import backend
  from keras.api_export import keras_export
  from keras.backend import KerasTensor
  from keras.backend import any_symbolic_tensors
  from keras.ops.operation import Operation
  from keras.utils import traceback_utils
label_desc: Use image node_id 1 to create a new Unstack object from inherited base classes: Operation with example: obj = Unstack(num, axis)