code: def test_convert_1d_to_2d(self):
      self.assertEqual(_convert_1d_to_2d(64), (8, 8))
      self.assertEqual(_convert_1d_to_2d(32), (8, 4))
      self.assertEqual(_convert_1d_to_2d(32 * 33), (33, 32))
  
file_path: keract/tests/display_activations_test.py
imports: import os
  import unittest
  from glob import glob
  import numpy
  import tensorflow.keras.backend
  from tensorflow.keras import Input, Model
  from tensorflow.keras.layers import Dense
  from keract import get_activations, display_activations
  from keract.keract import _convert_1d_to_2d
label_desc: Use image node_id 5 for calling the DisplayActivationsTest obj's underlying member method code with example usage: obj.test_convert_1d_to_2d() without return types