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: dokodemo.go
    path of file: ./repos/v2ray-core/proxy/dokodemo
    
    the code of the file until where you have to start completion: // +build !confonly

package dokodemo

//go:generate go run v2ray.com/core/common/errors/errorgen

import (
	"context"
	"sync/atomic"
	"time"

	"v2ray.com/core"
	"v2ray.com/core/common"
	"v2ray.com/core/common/buf"
	"v2ray.com
    
func init() {
	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
		d := new(DokodemoDoor)
		err := core.RequireFeatures(ctx, func(pm policy.Manager) error {
			return d.Init(config.(*Config), pm, session.SockoptFromContext(ctx))
		})
		return d, err
	}))
}