code: def fake_ffmpeg_decode_diskless(*_, **__):
      img_size = webvid_dataset_builder._IMG_SIZE
      return np.ones((11, img_size[0], img_size[1], 3), dtype=np.uint8)
  
imports: import numpy
  from tensorflow_datasets.datasets.webvid import webvid_dataset_builder
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 for calling a global function with example usage: fake_ffmpeg_decode_diskless() and returns: np