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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 describe_jobflow(self, jobflow_id):
 """ Describes a single Elastic MapReduce job flow :type jobflow_id: str :param jobflow_id: The job flow id of interest """

        jobflows = self.describe_jobflows(jobflow_ids=[jobflow_id])
        if jobflows:
            return jobflows[0]