code: def test_wrong_transform_type_in_a_stream(img_2x2):
      dc = slc.DataContainer(img_2x2, "I")
      with pytest.raises(TypeError):
          slc.Stream.exec_stream(
              [slt.Pad(4), lambda x: x**2], dc, False
          )
  
imports: import itertools
  import random
  import cv2
  import numpy
  import pytest
  import torch
  import solt.core
  import solt.transforms
  import solt.utils
  from .fixtures import *
label_desc: Use image node_id 30 for calling a global function with example usage: test_wrong_transform_type_in_a_stream(img_2x2) without return types