This export takes 2 parameters which are the citizenid of the player to get the jobs from and also a callback which returns an array with the job(s) data.
This export takes 3 parameters. The citizen id of the player to add the job to, the job name and also the job grade in number form, not the name or label of the job grade
This export takes 3 parameters, the citizen id of the player to update the job for, the job name and also the new job grade to assign to the players job.