big 1d model for unconditional generation on imagenet.

def imagetransformer_base_10l_8h_big_uncond_dr03_dan_64():
  """big 1d model for unconditional generation on imagenet."""
  hparams = imagetransformer_base_10l_8h_big_cond_dr03_dan()
  hparams.unconditional = True
  hparams.max_length = 14000
  hparams.batch_size = 1
  hparams.img_len = 64
  hparams.layer_prepostprocess_dropout = 0.1
  return hparams