WP Custom Post Type - Megamenu

<?php

// File Security Check
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

class ShapeCustomPosts {

    function __construct()
    {
        add_action( 'init', array( $this, 'shape_mega_menu') );
    }



    /**
     *
     * Shape Services Custom Post Type
     *
     */
    public function shape_mega_menu()
    {

        $labels = array(
            'name'               => _x( 'MegaMenu' , 'post type general name', 'one' ),
            'singular_name'      => _x( 'MegaMenu', 'post type singular name', 'one' ),
            'menu_name'          => _x( 'MegaMenu' , 'admin menu', 'one' ),
            'name_admin_bar'     => _x( 'MegaMenu', 'add new on admin bar', 'one' ),
            'add_new'            => _x( 'Add New', 'MegaMenu', 'one' ),
            'add_new_item'       => __( 'Add New ' . 'MegaMenu', 'one' ),
            'new_item'           => __( 'New ' . 'MegaMenu', 'one' ),
            'edit_item'          => __( 'Edit ' . 'MegaMenu', 'one' ),
            'view_item'          => __( 'View ' . 'MegaMenu', 'one' ),
            'all_items'          => __( 'MegaMenus', 'one' ),
            'search_items'       => __( 'Search MegaMenus', 'one' ),
            'parent_item_colon'  => __( 'Parent :', 'one' ),
            'not_found'          => __( 'No Services found.', 'one' ),
            'not_found_in_trash' => __( 'No Services found in Trash.', 'one' )
        );

        $args = array(
            'labels'             => $labels,
            'description'        => __( 'Description.', 'one' ),
            'public'             => true,
            'publicly_queryable' => true,
            'show_ui'            => true,
            'show_in_menu'       => true,
            'query_var'          => true,
            'menu_icon'          => 'dashicons-businessman',
            'rewrite'            => array( 'slug' => 'mega-menu', 'with_front' => true, 'pages' => true, 'feeds' => true ),
            'capability_type'    => 'post',
            'has_archive'        => true,
            'hierarchical'       => false,
            'menu_position'      => null,
            'supports'           => array( 'title', 'editor' )
        );

        register_post_type('mega_menu', $args);

    }


}

$shapeCustomPostInstance = new ShapeCustomPosts;