class_docstr: HiFiC Model class.
class_docstr_tok: ["HiFiC","Model","class","."]
code: def _make_discriminator_optimizer(self, step):
      if not self.training:
          return None
      return tf.train.AdamOptimizer(
          learning_rate=_scheduled_value(
              self._config.lr,
              self._config.lr_schedule,
              step,
              "lr_disc",
              summary=True,
          ),
          name="adam_disc",
      )
  
imports: import collections
  import glob
  import itertools
  from compare_gan.gans import loss_lib
  import tensorflow.compat.v1
  import tensorflow_datasets
  from hific import archs
  from hific import helpers
  from hific.helpers import ModelMode
  from hific.helpers import ModelType
  from hific.helpers import TFDSArguments
label_desc: Use image node_id 30 for calling the HiFiC obj's underlying member method code with example usage: obj._make_discriminator_optimizer(step) and returns: tf, None