can't define redis database number

[vessaldaneshvar]

I review source code of backends related to connect redis backend
I can't connect to specific db in redis and this ignore in codebase of parse URI definition

in broadcaster/_backends/redis.py initialize RedisBackend by port and host , in this section must be define database number

redis://HOST[:PORT][?db=DATABASE[&password=PASSWORD]]

db is missing on URI define

[Kludex]

PR welcome.

[Kludex]

If someone is seeing this, and there's interest on creating a PR, feel free to do so.

I'm closing it because it's stale, and it doesn't look like there's interest on it.