Redis 4.2.0 Redis#exists Returning an integer Instead of a Boolean

[bvicenzo]

Hello Guys.
Since Redis gem 4.2.0 the method Redis#exists is warning that message:

`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. (***/gems/moneta-1.3.0/lib/moneta/adapters/redis.rb:29:in `block in key?')

Is it possible we change to method Redis#exists?(key) here as the message suggest?

[asppsa]

Thanks for the report - looks like switching to #exists? is the way to go.

[asppsa]

Closed by #192

[asppsa]

Fixed in v1.4.0