code: def initialise_network(self):
      w_regularizer = None
      b_regularizer = None
      reg_type = self.net_param.reg_type.lower()
      decay = self.net_param.decay
      if reg_type == "l2" and decay > 0:
          from tensorflow.contrib.layers.python.layers import (
              regularizers,
          )
  
          w_regularizer = regularizers.l2_regularizer(decay)
          b_regularizer = regularizers.l2_regularizer(decay)
      elif reg_type == "l1" and decay > 0:
          from tensorflow.contrib.layers.python.layers import (
              regularizers,
          )
  
          w_regularizer = regularizers.l1_regularizer(decay)
          b_regularizer = regularizers.l1_regularizer(decay)
  
      self.net = ApplicationNetFactory.create(self.net_param.name)(
          w_regularizer=w_regularizer, b_regularizer=b_regularizer
      )
  
imports: import tensorflow
  from niftynet.application.base_application import BaseApplication
  from niftynet.engine.application_factory import ApplicationNetFactory
  from niftynet.engine.application_factory import OptimiserFactory
  from niftynet.engine.application_variables import CONSOLE
  from niftynet.engine.application_variables import NETWORK_OUTPUT
  from niftynet.engine.application_variables import TF_SUMMARIES
  from niftynet.engine.sampler_linear_interpolate_v2 import LinearInterpolateSampler
  from niftynet.contrib.csv_reader.sampler_linear_interpolate_v2_csv import LinearInterpolateSamplerCSV
  from niftynet.engine.sampler_resize_v2 import ResizeSampler
  from niftynet.contrib.csv_reader.sampler_resize_v2_csv import ResizeSamplerCSV
  from niftynet.contrib.csv_reader.csv_reader import CSVReader
  from niftynet.engine.windows_aggregator_identity import WindowAsImageAggregator
  from niftynet.io.image_reader import ImageReader
  from niftynet.layer.loss_autoencoder import LossFunction
  from niftynet.utilities.util_common import look_up_operations
label_desc: Use image node_id 4 for calling the AutoencoderApplication obj's underlying member method code with example usage: obj.initialise_network() without return types