クリーンなコードを実現するためにジン ルートを構成するにはどうすればよいですか?

<code class="go">package app

import (
    "github.com/gin-gonic/gin"
)

type routes struct {
    router *gin.Engine
}

func NewRoutes() routes {
    r := routes{
        router: gin.Default(),
    }

    v1 := r.router.Group("/v1")

    r.addPing(v1)
    r.addUsers(v1)

    return r
}

func (r routes) Run(addr ...string) error {
    return r.router.Run()
}</code>

<code class="go">package app

import "github.com/gin-gonic/gin"

func (r routes) addPing(rg *gin.RouterGroup) {
    ping := rg.Group("/ping")

    ping.GET("/", pongFunction)
}

func pongFunction(c *gin.Context) {
    c.JSON(200, gin.H{
        "message": "pong",
    })
}</code>

<code class="go">package app

import "github.com/gin-gonic/gin"

func (r routes) addUsers(rg *gin.RouterGroup) {
    users := rg.Group("/users")

    users.GET("/", getUsersFunction)
}

func getUsersFunction(c *gin.Context) {
    c.JSON(200, gin.H{
        "users": "...",
    })
}</code>