class Redis

def _bpop(cmd, args, &blk)
  timeout = if args.last.is_a?(Hash)
    options = args.pop
    options[:timeout]
  elsif args.last.respond_to?(:to_int)
    # Issue deprecation notice in obnoxious mode...
    args.pop.to_int
  end
  timeout ||= 0
  if args.size > 1
    # Issue deprecation notice in obnoxious mode...
  end
  keys = args.flatten
  synchronize do |client|
    command = [cmd, keys, timeout]
    timeout += client.timeout if timeout > 0
    client.call_with_timeout(command, timeout, &blk)
  end
end