class_docstr: Combine representation by concatenation followed by an aggregation along the same axis.
code: def iter_extra_repr(self) -> Iterable[str]:  # noqa: D102
      yield from super().iter_extra_repr()
      yield f"aggregation={self.aggregation}"
  
imports: import logging
  from abc import ABC, abstractmethod
  from typing import Any, Callable, Iterable, Mapping, Optional, Sequence, Tuple
  import torch
  from class_resolver import ClassResolver, Hint, HintOrType, OptionalKwargs
  from class_resolver.contrib.torch import activation_resolver, aggregation_resolver
  from torch import nn
  from ..utils import ExtraReprMixin, combine_complex, split_complex
label_desc: Use image node_id 3 for calling the ConcatAggregationCombination obj's underlying member method code with example usage: obj.iter_extra_repr() without return types