class_docstr: Combine representation by concatenation.
docstr: Initialize the combination.
  
  :param dim:
      the concatenation dimension
docstr_tok: ["Initialize","the","combination",".",":","param","dim",":","the","concatenation","dimension"]
code: def __init__(self, dim: int = -1) -> None:
      """
      Initialize the combination.
  
      :param dim:
          the concatenation dimension
      """
      super().__init__()
      self.dim = dim
  
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 1 to create a new ConcatCombination object from inherited base classes: Combination with example: obj = ConcatCombination(dim)