def next_frame_base_range(rhp):
  """Basic tuning grid."""
  rhp.set_float("dropout", 0.2, 0.6)
  rhp.set_discrete("hidden_size", [64, 128, 256])
  rhp.set_int("num_compress_steps", 5, 8)
  rhp.set_discrete("batch_size", [4, 8, 16, 32])
  rhp.set_int("num_hidden_layers", 1, 3)
  rhp.set_int("filter_double_steps", 1, 6)
  rhp.set_float("learning_rate_constant", 1., 4.)
  rhp.set_int("learning_rate_warmup_steps", 500, 3000)
  rhp.set_float("initializer_gain", 0.8, 1.8)
Basic tuning grid.