code: def _get_reduction(reduction, size_average=None, reduce=None):
      if size_average is not None or reduce is not None:
          return _get_reduction_func(
              _get_reduction_string(size_average, reduce)
          )
      else:
          return _get_reduction_func(reduction)
  
imports: import ivy
  import ivy.functional.frontends.torch
  from ivy.functional.frontends.torch.func_wrapper import to_ivy_arrays_and_back
  from ivy.func_wrapper import with_unsupported_dtypes, with_supported_dtypes
label_desc: Use image node_id 2 for calling a global function with example usage: _get_reduction(reduction, size_average, reduce) and returns: _get_reduction_func, _get_reduction_func