No `exists?` method

[andreyruby]

Redis 4.2 warns :

• Redis#exists(key) will return an Integer in redis-rb 4.3. exists? returns a boolean, you should use it instead. To opt-in to the new behavior now you can set Redis.exists_returns_integer = true. To disable this message and keep the current (boolean) behaviour of 'exists' you can set Redis.exists_returns_integer = false, but this option will be removed in 5.0

But changing exists to exists? shows redis-namespace error

• Passing 'exists?' command to redis as is; blind passthrough has been deprecated and will be removed in redis-namespace 2.0

[mperham]

Dupe of #171

[rafaelfranca]

#171 was merged. I'm going to release a new version soon

[virusman]

I'm still seeing this deprecation warning when usingredis-namespace 1.8.0.

[reedstonefood]

Also still happening in 1.8.1. @rafaelfranca WDYT?

Redis#exists(key) will return an Integer in redis-rb 4.3, if you want to keep the old behavior, use exists? instead. To opt-in to the new behavior now you can set Redis.exists_returns_integer = true. (/Users/reedstonefood/.gem/ruby/2.7.5/gems/redis-namespace-1.8.1/lib/redis/namespace.rb:476:in `call_with_namespace')