code: def encoder_for(args, idim, subsample):
      """Return the Encoder module.
  
      Args:
          idim (int): Dimension of input array.
          subsample (numpy.array): Subsample number. egs).1_2_2_2_1
  
      Return
          chainer.nn.Module: Encoder module.
  
      """
      return Encoder(
          args.etype,
          idim,
          args.elayers,
          args.eunits,
          args.eprojs,
          subsample,
          args.dropout_rate,
      )
  
imports: import logging
  import chainer
  import chainer.functions
  import chainer.links
  import numpy
  from chainer import cuda
  from espnet.nets.chainer_backend.nets_utils import _subsamplex
  from espnet.nets.e2e_asr_common import get_vgg2l_odim
label_desc: Use image node_id 1 for calling a global function with example usage: encoder_for(args, idim, subsample) and returns: Encoder