How to save cookies of visited sites in webView?

Question

Android

Hello!

package com.example.test

import android.annotation.SuppressLint
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.webkit.WebViewClient
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        webViewSetup()
    }
    @SuppressLint("SetJavaScriptEnabled")
    private fun webViewSetup() {
        wb_WebView.webViewClient = WebViewClient()
        wb_WebView.apply {
            loadUrl("https://test.ru")
            settings.javaScriptEnabled = true
        }
    }
    override fun onBackPressed() {
       if (wb_WebView.canGoBack()) wb_WebView.goBack() else super.onBackPressed()
    }
}

Such a problem is that when the application is closed, cookies are not saved. How can this be fixed?