class Redis::Client

def sort(key, options = {})
  cmd = []
  cmd << "SORT #{key}"
  cmd << "BY #{options[:by]}" if options[:by]
  cmd << "GET #{[options[:get]].flatten * ' GET '}" if options[:get]
  cmd << "#{options[:order]}" if options[:order]
  cmd << "LIMIT #{options[:limit].join(' ')}" if options[:limit]
  cmd << "STORE #{options[:store]}" if options[:store]
  call_command(cmd)
end