content: #  Copyright (c) ZenML GmbH 2021. All Rights Reserved.
  #
  #  Licensed under the Apache License, Version 2.0 (the "License");
  #  you may not use this file except in compliance with the License.
  #  You may obtain a copy of the License at:
  #
  #       https://www.apache.org/licenses/LICENSE-2.0
  #
  #  Unless required by applicable law or agreed to in writing, software
  #  distributed under the License is distributed on an "AS IS" BASIS,
  #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  #  or implied. See the License for the specific language governing
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  """Implementation of the PyTorch Lightning Materializer."""
  
  from typing import Any, ClassVar, Tuple, Type
  
  from torch.nn import Module
  
  from zenml.enums import ArtifactType
  from zenml.integrations.pytorch.materializers.base_pytorch_materializer import (
      BasePyTorchMaterializer,
  )
  
  CHECKPOINT_NAME = "final_checkpoint.ckpt"
  
  
  class PyTorchLightningMaterializer(BasePyTorchMaterializer):
      """Materializer to read/write PyTorch models."""
  
      ASSOCIATED_TYPES: ClassVar[Tuple[Type[Any], ...]] = (Module,)
      ASSOCIATED_ARTIFACT_TYPE: ClassVar[ArtifactType] = ArtifactType.MODEL
      FILENAME: ClassVar[str] = CHECKPOINT_NAME
  