code: def modify_schema(self):
      self.schema["models"].keys += ["classifier"]
      self.schema["loss_funcs"].keys += ["classifier_loss"]
  
imports: from ..utils import common_functions
  from .metric_loss_only import MetricLossOnly
label_desc: Use image node_id 4 for calling the TrainWithClassifier obj's underlying member method code with example usage: obj.modify_schema() without return types