hmget could return a future

[vince94320]

No description provided.

[vince94320]

Not sure If this is required, but I ended to have some failing tests in sidekiq.cr because it uses pipelined calls with hmget and they should return a Redis::Future

[stefanwille]

Hi Vince, yes, this is a bug. The fix is different though: commands.cr relies on type inference from the underlying command_execution to get the return types. I have put a fix in d65deae

Thank you for your effort.

[stefanwille]

Closing in favor of d65deae