class Rufus::Scheduler::SchedulerCore

def find(job_or_id)


raise an ArgumentError.
If the argument is an id, and no job with that id is found, it will

simply return it.
Mostly used to find a job given its id. If the argument is a job, will 
def find(job_or_id)
  return job_or_id if job_or_id.respond_to?(:job_id)
  job = all_jobs[job_or_id]
  raise ArgumentError.new(
    "couldn't find job #{job_or_id.inspect}"
  ) unless job
  job
end