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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 set_distributed_assembled_rows_cols(self, irn_loc, jcn_loc):
 """Set the distributed assembled matrix row & column numbers. Distributed assembled matrices require setting icntl(18) != 0. """

        assert irn_loc.size == jcn_loc.size

        self._refs.update(irn_loc=irn_loc, jcn_loc=jcn_loc)
        self.id.nz_loc = irn_loc.size
        self.id.irn_loc = self.cast_array(irn_loc)
        self.id.jcn_loc = self.cast_array(jcn_loc)