code: def get_expected_codebook_image_size(self):
      if not isinstance(self.codebook_size, tuple):
          return (self.codebook_size, self.codebook_size)
      else:
          return self.codebook_size
  
imports: import random
  import unittest
  import numpy
  from transformers.testing_utils import require_torch, require_vision
  from transformers.utils import is_torch_available, is_vision_available
  from ...test_feature_extraction_common import FeatureExtractionSavingTestMixin, prepare_image_inputs
label_desc: Use image node_id 5 for calling the FlavaFeatureExtractionTester obj's underlying member method code with example usage: obj.get_expected_codebook_image_size() and returns: self,  self, self