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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 pop_fw_local(self, tenant_id, net_id, direc, node_ip):
 """Populate the local cache. Read the Network DB and populate the local cache. Read the subnet from the Subnet DB, given the net_id and populate the cache. """

        net = self.get_network(net_id)
        serv_obj = self.get_service_obj(tenant_id)
        serv_obj.update_fw_local_cache(net_id, direc, node_ip)
        if net is not None:
            net_dict = self.fill_dcnm_net_info(tenant_id, direc, net.vlan,
                                               net.segmentation_id)
            serv_obj.store_dcnm_net_dict(net_dict, direc)
        if direc == "in":
            subnet = self.service_in_ip.get_subnet_by_netid(net_id)
        else:
            subnet = self.service_out_ip.get_subnet_by_netid(net_id)
        if subnet is not None:
            subnet_dict = self.fill_dcnm_subnet_info(
                tenant_id, subnet,
                self.get_start_ip(subnet), self.get_end_ip(subnet),
                self.get_gateway(subnet), self.get_secondary_gateway(subnet),
                direc)
            serv_obj.store_dcnm_subnet_dict(subnet_dict, direc)