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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_from_ident(self, ident):
 """ Take a string as returned by get_ident and return a job, based on the class representation and the job's pk from the ident """

        model_repr, job_pk = ident.split(':', 1)
        klass = import_class(model_repr)
        return klass.get(job_pk)