text: # Copyright The PyTorch Lightning team.
  #
  # 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
  #
  #     http://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 permissions and
  # limitations under the License.
  from typing import Callable, Union
  
  import torch
  from torchmetrics import Metric
  from torchmetrics.metric import CompositionalMetric as _CompositionalMetric
  
  from pytorch_lightning.metrics.utils import deprecated_metrics, void
  
  
  class CompositionalMetric(_CompositionalMetric):
      @deprecated_metrics(target=_CompositionalMetric)
      def __init__(
          self,
          operator: Callable,
          metric_a: Union[Metric, int, float, torch.Tensor],
          metric_b: Union[Metric, int, float, torch.Tensor, None],
      ):
          """
          .. deprecated::
              Use :class:`torchmetrics.metric.CompositionalMetric`. Will be removed in v1.5.0.
          """
          void(operator, metric_a, metric_b)
  