code: def __init__(self) -> None:
      self.stub = PSIServiceStub(FLClient.channel)
      self.hashed_ids_to_ids = {}
  
file_path: BigDL/python/ppml/src/bigdl/ppml/fl/psi/psi_client.py
imports: import logging
  import time
  from bigdl.dllib.utils.log4Error import invalidOperationError
  from bigdl.ppml.fl.psi.utils import to_hex_string
  from ..nn.fl_client import FLClient
  from bigdl.ppml.fl.nn.generated.psi_service_pb2_grpc import *
  from ..nn.generated.psi_service_pb2 import DownloadIntersectionRequest, SaltRequest, UploadSetRequest
label_desc: Use image node_id 1 to create a new PSI object from inherited base classes: object with example: obj = PSI()