blpop only accepts integer timeout value while redis can handle double

**Version**: 5.0.8

**Platform**:  Python 3.9.2 on Ubuntu

**Description**: `redis.Redis.blpop` only accepts integer timeout value, while the Redis docs state that the timeout can be a double value (starting from Redis 6.0.0): https://redis.io/docs/latest/commands/blpop/. Is there a reason for only accepting integer values regardless of the Redis version?