def retrieve_network_info(self, tenant_id, direc):
serv_obj = self.get_service_obj(tenant_id)<EOL>net_dict = self.retrieve_dcnm_net_info(tenant_id, direc)<EOL>if net_dict:<EOL><INDENT>return net_dict<EOL><DEDENT>net_dict = self.fill_dcnm_net_info(tenant_id, direc)<EOL>serv_obj.store_dcnm_net_dict(net_dict, direc)<EOL>return net_dict<EOL>
Retrieve the DCNM Network information.

        Retrieves DCNM net dict if already filled, else, it calls
        routines to fill the net info and store it in tenant obj.