@classmethod<EOL><INDENT>def init(cls, redis_host: str, redis_port: int, is_sentinel_redis=False, redis_sentinel_service="<STR_LIT>",<EOL>redis_password=None):<DEDENT>
if not cls.redis_helper:<EOL><INDENT>cls.redis_helper = RedisHelper(host=redis_host, port=redis_port, is_sentinel=is_sentinel_redis,<EOL>sentinel_service=redis_sentinel_service, password=redis_password)<EOL><DEDENT>
Initializes redis connection
:param redis_host: Hostname of redis server
:type redis_host: str

:param redis_port: Port at which redis server is listening
:type redis_port:int

:param is_sentinel_redis: Parameter indicating if redis server is a sentinel server. Default is false
:type is_sentinel_redis: bool

:param redis_sentinel_service: If redis server is a sentinel server, service name for redis sentinel
:type redis_sentinel_service: str

:param redis_password: Password for redis connection
:type redis_password: str