code: def Interrupt(self, req: proto.InterruptRequest, metadata):
      self.req = req
      resp = proto.InterruptResponse()
      resp.session_id = self._session_id
      return resp
  
imports: import unittest
  import uuid
  from collections.abc import Generator
  from typing import Optional, Any
  from pyspark.testing.connectutils import should_test_connect, connect_requirement_message
  from pyspark.testing.utils import eventually
label_desc: Use image node_id 3 for calling the MockService obj's underlying member method code with example usage: obj.Interrupt(req, metadata) and returns: resp