Values.AddSourceIdentifierToSubscriptionMessageSourceAdds a source identifier to an existing event notification subscription.
type nonrec t = {subscriptionName : String_.t;The name of the event notification subscription you want to add a source identifier to.
*)sourceIdentifier : String_.t;The identifier of the event source to be added. Constraints: If the source type is a DB instance, then a DBInstanceIdentifier must be supplied. If the source type is a DB security group, a DBSecurityGroupName must be supplied. If the source type is a DB parameter group, a DBParameterGroupName must be supplied. If the source type is a DB snapshot, a DBSnapshotIdentifier must be supplied.
*)}