code: def _load_ppackage_by_jpackage(self, jpackage_name):
      if jpackage_name in (
          "com.intel.analytics.bigdl.dllib.keras.Model",
          "com.intel.analytics.bigdl.dllib.keras.Sequential",
      ):
          return importlib.import_module("bigdl.dllib.keras.models")
      invalidInputError(
          False, "Not supported package: {}".format(jpackage_name)
      )
  
file_path: BigDL/python/dllib/src/bigdl/dllib/net/net_load.py
imports: import importlib
  import os
  import sys
  from bigdl.dllib.utils.file_utils import callZooFunc
  from bigdl.dllib.nn.layer import Model
  from bigdl.dllib.net.graph_net import GraphNet
  from bigdl.dllib.utils.log4Error import *
label_desc: Use image node_id 4 for calling the JavaToPython obj's underlying member method code with example usage: obj._load_ppackage_by_jpackage(jpackage_name) and returns: importlib