code: def verify_freeze_these_keys(self):
      allowed_keys = (
          self.schema["models"].keys + self.schema["loss_funcs"].keys
      )
      for k in self.freeze_these:
          assert (
              k in allowed_keys
          ), "freeze_these keys must be one of {}".format(
              ", ".join(allowed_keys)
          )
          if k + "_optimizer" in self.optimizers.keys():
              c_f.LOGGER.warning(
                  "You have passed in an optimizer for {}, but are freezing its parameters.".format(
                      k
                  )
              )
  
imports: import torch
  import tqdm
  from ..utils import common_functions
  from ..utils import loss_tracker
  from ..utils.key_checker import KeyChecker, KeyCheckerDict
label_desc: Use image node_id 37 for calling the BaseTrainer obj's underlying member method code with example usage: obj.verify_freeze_these_keys() without return types