code: def execute_command(self, *args, **kwargs):
      # wrapper  purely to validate the calls don't explode
      from redis.client import bool_ok
  
      return bool_ok
  
imports: import socket
  from unittest import mock
  import pytest
  import redis.sentinel
  from redis import exceptions
  from redis.sentinel import MasterNotFoundError, Sentinel, SentinelConnectionPool, SlaveNotFoundError
label_desc: Use image node_id 4 for calling the SentinelTestClient obj's underlying member method code with example usage: obj.execute_command() and returns: bool_ok