code: def cross_slot_reduce(self, per_slot_metrics: List) -> Any:
      try:
          result = self.reducer.cross_slot_reduce(per_slot_metrics)
      except Exception as e:
          raise ValueError(
              f'reducer of type {type(self.reducer).__name__} for name="{self.name}" '
              f"failed in a call to cross_slot_reduce() with per_slot_metrics={per_slot_metrics}"
          ) from e
      return result
  
imports: import abc
  import enum
  import itertools
  from typing import Any, Callable, Dict, List, Optional, TypeVar, Union, overload
  import numpy
label_desc: Use image node_id 4 for calling the _WrappedReducer obj's underlying member method code with example usage: obj.cross_slot_reduce(per_slot_metrics) and returns: result