code: def build_callbacks(self) -> Dict[str, pytorch.PyTorchCallback]:
      return {"metrics": self.metrics_callback}
  
file_path: determined/e2e_tests/tests/fixtures/pytorch_identity/model_def.py
imports: from typing import Any, Dict, Tuple
  import torch.utils.data
  from determined import pytorch
label_desc: Use image node_id 6 for calling the IdentityPyTorchTrial obj's underlying member method code with example usage: obj.build_callbacks() and returns: dict