Permits to get error_msg for a specific job
It is impossible to get error_msg via API for a specific job. It is only possible to get it via scheduler.jobs.list() but this function does not get a jobid but return a relative jobs list. So using it to get a specific jobid is too complex (need to get current max jobid and calculate a relative offset).
Where it is best to adds support for getting error_msg, scheduler.jobs.show() or scheduler.job_details() ?