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: payment.go
    path of file: ./repos/go-zero-looklook/app/payment/cmd/rpc
    
    the code of the file until where you have to start completion: package main

import (
	"flag"
	"fmt"

	"looklook/app/payment/cmd/rpc/internal/config"
	"looklook/app/payment/cmd/rpc/internal/server"
	"looklook/app/payment/cmd/rpc/internal/svc"
	"looklook/app/payment/cmd/rpc/pb"
	"looklook/common/interceptor/rpcserver"

	"github.com/zeromicro/go-zero/core/conf"
	"github.com/zeromicro/go-zero/core/service"
	"github.com/zeromicro/go-zero
    
func main() {
	flag.Parse()

	var c config.Config
	conf.MustLoad(*configFile, &c)
	ctx := svc.NewServiceContext(c)
	srv := server.NewPaymentServer(ctx)

	s := zrpc.MustNewServer(c.RpcServerConf, func(grpcServer *grpc.Server) {
		pb.RegisterPaymentServer(grpcServer, srv)

		if c.Mode == service.DevMode || c.Mode == service.TestMode {
			reflection.Register(grpcServer)
		}
	})

	//rpc log
	s.AddUnaryInterceptors(rpcserver.LoggerInterceptor)

	defer s.Stop()

	fmt.Printf("Starting rpc server at %s...\n", c.ListenOn)
	s.Start()
}