Basic conv model with scheduled sampling.

def next_frame_sampling():
  """Basic conv model with scheduled sampling."""
  hparams = next_frame_basic_deterministic()
  hparams.scheduled_sampling_mode = "prob_inverse_exp"
  hparams.scheduled_sampling_max_prob = 1.0
  hparams.scheduled_sampling_decay_steps = 10000
  return hparams