code: def init_keys(app_id, api_key, primary_key_path):
      return callBigDlFunc(
          "float", "initKeys", app_id, api_key, primary_key_path
      )
  
imports: from bigdl.ppml.api import *
  from bigdl.ppml.utils.log4Error import *
  from enum import Enum
  from pyspark.sql import SparkSession
  from pyspark.ml.wrapper import JavaParams
label_desc: Use image node_id 2 for calling a global function with example usage: init_keys(app_id, api_key, primary_key_path) and returns: callBigDlFunc