ScheduleDefinitions: The definition of the snapshot schedule. The definition is made up of schedule expressions, for example "cron(30 12 *)" or "rate(12 hours)".
ScheduleIdentifier: A unique identifier for a snapshot schedule. Only alphanumeric characters are allowed for the identifier.
ScheduleDescription: The description of the snapshot schedule.
Tags: An optional set of tags you can use to search for the schedule.