code: def layers(self):
      jlayers = callZooFunc(self.bigdl_type, "getSubModules", self)
      layers = [Layer.of(jlayer) for jlayer in jlayers]
      return layers
  
imports: import bigdl.dllib.keras.autograd
  from bigdl.dllib.feature.image import ImageSet
  from bigdl.dllib.feature.text import TextSet
  from bigdl.dllib.feature.common import FeatureSet
  from bigdl.dllib.keras.base import ZooKerasLayer
  from bigdl.dllib.keras.utils import *
  from bigdl.dllib.nn.layer import Layer
  from bigdl.dllib.utils.file_utils import callZooFunc
label_desc: Use image node_id 23 for calling the KerasNet obj's underlying member method code with example usage: obj.layers() and returns: layers