You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: rule.go
    path of file: ./repos/wgnetwork/vendor/github.com/google/nftables
    
    the code of the file until where you have to start completion: // Copyright 2018 Google LLC. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package nftables

import (
	"encoding/binary"
	"fmt"

	"github.com/google/nftables/binaryutil"
	"github.com/google/nftables/expr"
	"github.com/google/nftables/internal/parseexprfunc"
	"github.com/mdlayher/netlink"
	"golang.org/x/sys/unix"
)

var ruleHeaderType = netlink.HeaderType((unix.NFNL_SUBSYS_NFTABLES << 8) | unix.NFT_MSG_NEWRULE)

type ruleOperation uint32

// Possible Payload
    
func (cc *Conn) GetRules(t *Table, c *Chain) ([]*Rule, error) {
	conn, closer, err := cc.netlinkConn()
	if err != nil {
		return nil, err
	}
	defer func() { _ = closer() }()

	data, err := netlink.MarshalAttributes([]netlink.Attribute{
		{Type: unix.NFTA_RULE_TABLE, Data: []byte(t.Name + "\x00")},
		{Type: unix.NFTA_RULE_CHAIN, Data: []byte(c.Name + "\x00")},
	})
	if err != nil {
		return nil, err
	}

	message := netlink.Message{
		Header: netlink.Header{
			Type:  netlink.HeaderType((unix.NFNL_SUBSYS_NFTABLES << 8) | unix.NFT_MSG_GETRULE),
			Flags: netlink.Request | netlink.Acknowledge | netlink.Dump | unix.NLM_F_ECHO,
		},
		Data: append(extraHeader(uint8(t.Family), 0), data...),
	}

	if _, err := conn.SendMessages([]netlink.Message{message}); err != nil {
		return nil, fmt.Errorf("SendMessages: %v", err)
	}

	reply, err := receiveAckAware(conn, message.Header.Flags)
	if err != nil {
		return nil, fmt.Errorf("Receive: %v", err)
	}
	var rules []*Rule
	for _, msg := range reply {
		r, err := ruleFromMsg(t.Family, msg)
		if err != nil {
			return nil, err
		}
		// Carry over all Table attributes (including Family), as the Table
		// object which ruleFromMsg creates only contains the name.
		r.Table = t
		rules = append(rules, r)
	}

	return rules, nil
}