Values.AwsOpenSearchServiceDomainMasterUserOptionsDetailsSourceSpecifies information about the master user of the domain.
type nonrec t = {masterUserArn : NonEmptyString.t option;The Amazon Resource Name (ARN) for the master user.
*)masterUserName : NonEmptyString.t option;The username for the master user.
*)masterUserPassword : NonEmptyString.t option;The password for the master user.
*)}