code: def get_random_picture(height=None, width=None, channels=CHANNELS_NB):
      """Returns random picture as np.ndarray (int)."""
      height = height or random.randrange(
          MIN_HEIGHT_WIDTH, MAX_HEIGHT_WIDTH
      )
      width = width or random.randrange(
          MIN_HEIGHT_WIDTH, MAX_HEIGHT_WIDTH
      )
      return np.random.randint(
          256, size=(height, width, channels), dtype=np.uint8
      )
  
file_path: datasets/tensorflow_datasets/testing/fake_data_utils.py
imports: import random
  import tempfile
  import numpy
  from tensorflow_datasets.core import utils
  from tensorflow_datasets.core.utils.lazy_imports_utils import tensorflow
label_desc: Use image node_id 1 for calling a global function with example usage: get_random_picture(height, width, channels) and returns: np