Sage wordpress add customize register

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    add_action('customize_register', function ($wp_customize) {
        $wp_customize->add_section('copyright_extras_section', array(
            'title'          => 'Copyright Text Section'
        ));
    
        //adding setting for copyright text
        $wp_customize->add_setting('text_setting', array(
            'default'        => 'Default Text For copyright Section',
        ));
    
        $wp_customize->add_control('text_setting', array(
            'label'   => 'Copyright text',
            'section' => 'copyright_extras_section',
            'type'    => 'text',
        ));
    });