code: def get_data_key_plaintext(
      ip, port, encrypted_primary_key_path, encrypted_data_key_path
  ):
      data_key_plaintext = key_manager.retrieve_data_key_plaintext(
          ip, port, encrypted_primary_key_path, encrypted_data_key_path
      )
      print(data_key_plaintext)
      return data_key_plaintext
  
file_path: BigDL/python/ppml/src/bigdl/ppml/kms/ehsm/client.py
imports: import argparse
  import os
  import file_operator
  import key_manager
label_desc: Use image node_id 10 for calling a global function with example usage: get_data_key_plaintext(ip, port, encrypted_primary_key_path, encrypted_data_key_path) and returns: data_key_plaintext