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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 populate_cfg_dcnm(self, cfg, dcnm_obj):
 """This routine stores the DCNM object. """

        if not self.fw_init:
            return
        self.dcnm_obj = dcnm_obj
        self.fabric.store_dcnm(dcnm_obj)
        self.populate_dcnm_obj(dcnm_obj)