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: shindan.go
    path of file: ./repos/ZeroBot-Plugin/plugin/shindan
    
    the code of the file until where you have to start completion: // Package shindan 基于 https://shindanmaker.com 的测定小功能
package shindan

import (
	"github.com/FloatTech/AnimeAPI/shindanmaker"
	zero "github.com/wdvxdr1123/ZeroBot"
	"github.com/wdvxdr1123/ZeroBot/message"
	"github.com/wdvxdr1123/ZeroBot/utils/hel
    
func init() {
	engine := control.AutoRegister(&ctrl.Options[*zero.Ctx]{
		DisableOnDefault: false,
		Brief:            "shindan测定",
		Help: "- 今天是什么少女[@xxx]\n" +
			"- 异世界转生[@xxx]\n" +
			"- 卖萌[@xxx]\n" +
			"- 今日老婆[@xxx]\n" +
			"- 黄油角色[@xxx]",
	})
	engine.OnPrefix("异世界转生", number(587874)).SetBlock(true).Limit(ctxext.LimitByUser).Handle(handlepic)
	engine.OnPrefix("今天是什么少女", number(162207)).SetBlock(true).Limit(ctxext.LimitByUser).Handle(handlepic)
	engine.OnPrefix("卖萌", number(360578)).SetBlock(true).Limit(ctxext.LimitByUser).Handle(handletxt)
	engine.OnPrefix("今日老婆", number(1075116)).SetBlock(true).Limit(ctxext.LimitByUser).Handle(handlecq)
	engine.OnPrefix("黄油角色", number(1115465)).SetBlock(true).Limit(ctxext.LimitByUser).Handle(handlepic)
}