code: def get_master_address(self):
      master_address = self.sentinel_manager.discover_master(
          self.service_name
      )
      if self.is_master and self.master_address != master_address:
          self.master_address = master_address
          # disconnect any idle connections so that they reconnect
          # to the new master the next time that they are used.
          connection_pool = self.connection_pool_ref()
          if connection_pool is not None:
              connection_pool.disconnect(inuse_connections=False)
      return master_address
  
imports: import random
  import weakref
  from typing import Optional
  from redis.client import Redis
  from redis.commands import SentinelCommands
  from redis.connection import Connection, ConnectionPool, SSLConnection
  from redis.exceptions import ConnectionError, ReadOnlyError, ResponseError, TimeoutError
  from redis.utils import str_if_bytes
label_desc: Use image node_id 3 for calling the SentinelConnectionPoolProxy obj's underlying member method code with example usage: obj.get_master_address() and returns: master_address