human
Complete the below
def _handle_job_set(function):

    ''''A decorator for handling `taskhandle.JobSet`\s
    A decorator for handling `taskhandle.JobSet`\s for `do` and `undo`
    methods of `Change`\s.'
    '''
assistant
#Here is the Python program you requested.
    def call(self, job_set=taskhandle.NullJobSet()):
        job_set.started_job(str(self))
        function(self)
        job_set.finished_job()
    return call