Set of hyperparameters.

def img2img_transformer2d_n24():
  """Set of hyperparameters."""
  hparams = img2img_transformer2d_base()
  hparams.batch_size = 1
  hparams.hidden_size = 1024
  hparams.filter_size = 2048
  hparams.layer_prepostprocess_dropout = 0.2
  hparams.num_decoder_layers = 8
  hparams.query_shape = (8, 16)
  hparams.memory_flange = (8, 32)
  return hparams