code: def fix_input_dims(self, x):
      return _fix_dcu_input_dims(
          self.fix_length_mode,
          x,
          torch.from_numpy(self.encoders_stride_product),
      )
  
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 3 for calling the DCUNet obj's underlying member method code with example usage: obj.fix_input_dims(x) and returns: _fix_dcu_input_dims