code: def extra_repr(self):
      return (
          "{num_features}, eps={eps}, momentum={momentum}, affine={affine}, "
          "track_running_stats={track_running_stats}".format(
              **self.__dict__
          )
      )
  
imports: import functools
  from functools import partial
  import numpy
  import torch
  from torch import Tensor, nn
  from torch.nn.modules.batchnorm import _BatchNorm
label_desc: Use image node_id 6 for calling the ComplexBatchNorm obj's underlying member method code with example usage: obj.extra_repr() and returns: str