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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 disable_jt_ha(self, active_name):
 """ Disable high availability for a MR JobTracker active-standby pair. @param active_name: name of the JobTracker that will be active after the disable operation. The other JobTracker and Failover Controllers will be removed. @return: Reference to the submitted command. """

    args = dict(
      activeName = active_name,
    )
    return self._cmd('disableJtHa', data=args)