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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 destroy(self):
 """Delete the MUMPS context and release all array references."""

        if self.id is not None and self._mumps_c is not None:
            self.id.job = -2 # JOB_END
            self._mumps_c(self.id)
        self.id = None
        self._refs = None