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: systemcmd.go
    path of file: ./repos/godis/database
    
    the code of the file until where you have to start completion: package database

import (
	"fmt"
	"github.com/hdt3213/godis/config"
	"github.com/hdt3213/godis/interface/redis"
	"github.com/hdt3213/godis
    
func Ping(c redis.Connection, args [][]byte) redis.Reply {
	if len(args) == 0 {
		return &protocol.PongReply{}
	} else if len(args) == 1 {
		return protocol.MakeStatusReply(string(args[0]))
	} else {
		return protocol.MakeErrReply("ERR wrong number of arguments for 'ping' command")
	}
}