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: publish.go
    path of file: ./repos/seaweedfs/weed/mq/client/pub_client
    
    the code of the file until where you have to start completion: package pub_client

import (
	"fmt"
	"github.com/seaweedfs/seaweedfs/weed/mq/pub_balancer"
	"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
	"github.com/seaweedfs/seaweedfs/weed/util"
)

func (p *TopicPublisher) Publish(key, value []byte) error {
	hashKey := util.HashToInt32(key) % pub_balancer.MaxPartitionCount
	if hashKey < 0 {
		hashKey = -hashKey
	}
	publishClient, found := p.partition2Broker.Floor(hashKey, hashKey)
	if !found {
		return fmt.Errorf("no broker found for key %d", hashKey)
	}
	p.Lock()
	defer p.Unlock()
	// dead lock here
	//google.golang.org/grpc/internal/transport.(*
    
func (p *TopicPublisher) Publish(key, value []byte) error {
	hashKey := util.HashToInt32(key) % pub_balancer.MaxPartitionCount
	if hashKey < 0 {
		hashKey = -hashKey
	}
	publishClient, found := p.partition2Broker.Floor(hashKey, hashKey)
	if !found {
		return fmt.Errorf("no broker found for key %d", hashKey)
	}
	p.Lock()
	defer p.Unlock()
	// dead lock here
	//google.golang.org/grpc/internal/transport.(*writeQuota).get(flowcontrol.go:59)
	//google.golang.org/grpc/internal/transport.(*http2Client).Write(http2_client.go:1047)
	//google.golang.org/grpc.(*csAttempt).sendMsg(stream.go:1040)
	//google.golang.org/grpc.(*clientStream).SendMsg.func2(stream.go:892)
	//google.golang.org/grpc.(*clientStream).withRetry(stream.go:752)
	//google.golang.org/grpc.(*clientStream).SendMsg(stream.go:894)
	//github.com/seaweedfs/seaweedfs/weed/pb/mq_pb.(*seaweedMessagingPublishClient).Send(mq_grpc.pb.go:141)
	//github.com/seaweedfs/seaweedfs/weed/mq/client/pub_client.(*TopicPublisher).Publish(publish.go:19)
	if err := publishClient.Send(&mq_pb.PublishRequest{
		Message: &mq_pb.PublishRequest_Data{
			Data: &mq_pb.DataMessage{
				Key:   key,
				Value: value,
			},
		},
	}); err != nil {
		return fmt.Errorf("send publish request: %v", err)
	}
	return nil
}