code: def change_input_channels(
      self, input_channels: int, mode="auto", **kwargs
  ):
      self.encoder.features_conv1_1.conv = make_n_channel_input(
          self.encoder.features_conv1_1.conv,
          input_channels,
          mode,
          **kwargs,
      )
      return self
  
imports: import torch
  from ..common import EncoderModule, make_n_channel_input
label_desc: Use image node_id 3 for calling the DPN107Encoder obj's underlying member method code with example usage: obj.change_input_channels(input_channels, mode) and returns: self