code: def next_frame_ae():
      """Conv autoencoder."""
      hparams = next_frame_basic_deterministic()
      hparams.bottom["inputs"] = modalities.video_bitwise_bottom
      hparams.top["inputs"] = modalities.video_top
      hparams.hidden_size = 256
      hparams.batch_size = 8
      hparams.num_hidden_layers = 4
      hparams.num_compress_steps = 4
      hparams.dropout = 0.4
      return hparams
  
imports: from __future__ import division
  from __future__ import print_function
  from tensor2tensor.layers import modalities
  from tensor2tensor.models.video import base
  from tensor2tensor.utils import registry
label_desc: Use image node_id 6 for calling a global function with example usage: next_frame_ae() and returns: hparams