How to register posty type with taxonomy in wordpress

WordPress give a lot of functionality to register a custom post type here is example of code:

<?php 

function faq_post_type() {

    $labels = array(
        'name'                => 'FAQ' ,
        'singular_name'       =>'FAQ',
        'menu_name'           =>'FAQ',
    );
    $args = array(
        'label'               => 'FAQ',
   
        'labels'              => $labels,
        'supports'            => array( ),
        'hierarchical'        => false,
        'public'              => true,
        'menu_position'       => 5,
        'menu_icon'           => 'dashicons-edit',
      
    );
    register_post_type( 'faq', $args );
 register_taxonomy(
        'faq_cat', // slug of taxonomy
        'faq', // slug of post type
        array(
            'label' => __( 'Category' ), // Name of category
            'rewrite' => array( 'slug' => 'faq_cat' ),
            'hierarchical' => true,
        )
    );
}

add_action( 'init', 'faq_post_type' );

?>