class Aws::S3::ObjectVersion

def extract_bucket_name(args, options)
  value = args[0] || options.delete(:bucket_name)
  case value
  when String then value
  when nil then raise ArgumentError, "missing required option :bucket_name"
  else
    msg = "expected :bucket_name to be a String, got #{value.class}"
    raise ArgumentError, msg
  end
end