code: def expected_output_image_shape(self, images):
      return (
          self.num_channels,
          self.crop_size["height"],
          self.crop_size["width"],
      )
  
file_path: transformers/tests/models/deit/test_image_processing_deit.py
imports: import unittest
  from transformers.testing_utils import require_torch, require_vision
  from transformers.utils import is_vision_available
  from ...test_image_processing_common import ImageProcessingTestMixin, prepare_image_inputs
label_desc: Use image node_id 3 for calling the DeiTImageProcessingTester obj's underlying member method code with example usage: obj.expected_output_image_shape(images) and returns: self,  self,  self