Filters dont work

my filters are working for different purposes but i'm using it different . I don't put filter in route


At : /var/www/htdocs/appstarter/app/Filters

//i have my classes

├── MyFilter.php
├── MyFilter10.php
├── MyFilter2.php
├── MyFilter3.php
├── MyFilter4.php
├── MyFilter5.php
├── MyFilter6.php
├── MyFilter7.php
├── MyFilter8.php
└── MyFilter9.php


eg

Code:

<?php namespace App\Filters;

use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\Filters\FilterInterface;


class MyFilter implements FilterInterface
{
        public function before(RequestInterface $request, $arguments = null)
        {
            session_start();
   
           $logic=isset($_SESSION['role']) ;
           if($logic==false)
           {
            return redirect('spam');
   
           }
   
 

then in app/Config/Filters.php

Code:

<?php namespace Config;

use CodeIgniter\Config\BaseConfig;

class Filters extends BaseConfig
{
    // Makes reading things below nicer,
    // and simpler to change out script that's used.
    public $aliases = [
        'csrf'     => \CodeIgniter\Filters\CSRF::class,
        'toolbar'  => \CodeIgniter\Filters\DebugToolbar::class,
        'honeypot' => \CodeIgniter\Filters\Honeypot::class,
        'myfilter'=> \App\Filters\MyFilter::class,
        'myfilter2'=> \App\Filters\MyFilter2::class,
        
        
        
    ];

    // Always applied before every request
    public $globals = [
        'before' => [
            //'honeypot'
            // 'csrf',
        ],
        'after'  => [
            'toolbar',
            //'honeypot'
        ],
    ];

    // Works on all of a particular HTTP method
    // (GET, POST, etc) as BEFORE filters only
    //     like: 'post' => ['CSRF', 'throttle'],
    public $methods = [];

    // List filter aliases and any before/after uri patterns
    // that they should run on, like:
    //    'isLoggedIn' => ['before' => ['account/*', 'profiles/*']],
    public $filters = [
    
    
    'myfilter' => ['before' => ['newblog']],
    'myfilter9' => ['before' => ['admin']],
//etc
    
    
    ];
}

But in documentation https://codeigniter.com/userguide4/incom...ng-filters is write as my code..