<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def autoencoder_discrete_cifar():
 """Discrete autoencoder model for compressing cifar."""

  hparams = autoencoder_ordered_discrete()
  hparams.bottleneck_noise = 0.0
  hparams.bottleneck_bits = 90
  hparams.num_hidden_layers = 2
  hparams.hidden_size = 256
  hparams.num_residual_layers = 4
  hparams.batch_size = 32
  hparams.learning_rate_constant = 1.0
  return hparams