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   $backup-dir as String,
   $start as Date,
   $max-backups as (Number|String),
   $backup-security-db as Boolean,
   $backup-schemas-db as Boolean,
   $backup-triggers-db as Boolean,
   [$include-replicas as Boolean],
   [$journal-archiving as Boolean?],
   [$journal-archive-path as String?],
   [$lag-limit as (Number|String)?]
) as element(db.databaseBackup)


This function constructs a one-time backup specification.

$backup-dir The directory where the backup will be saved to.
$start The starting dateTime of the scheduled backup.
$max-backups The maximum number of backups to keep in the backup directory.
$backup-security-db Whether to backup the security database alongside the current backup.
$backup-schemas-db Whether to backup the schemas database alongside the current backup.
$backup-triggers-db Whether to backup the triggers database alongside the current backup.
$include-replicas If set to false, do not include the replicas in the backup. The default is true, which means to include all replicas in the backup.
$journal-archiving Whether or not to enable journal archiving. Defaults to false.
$journal-archive-path Path for where archived journals are stored. Defaults to the backup data directory.
$lag-limit Maximum difference in seconds that the archived journal can lag behind its forest's active journal. Defaults to 900.


  const admin = require('/MarkLogic/admin.xqy');

   //returns the oneTime backup 

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