bbPress::register_post_types()

    public static function register_post_types() {

        /** Forums ************************************************************/

        // Register Forum content type
        register_post_type(
            bbp_get_forum_post_type(),
            apply_filters( 'bbp_register_forum_post_type', array(
                'labels'              => bbp_get_forum_post_type_labels(),
                'rewrite'             => bbp_get_forum_post_type_rewrite(),
                'supports'            => bbp_get_forum_post_type_supports(),
                'description'         => __( 'Forums', 'buddyboss' ),
                'capabilities'        => bbp_get_forum_caps(),
                'capability_type'     => array( 'forum', 'forums' ),
                'menu_position'       => 555555,
                'has_archive'         => bbp_get_root_slug(),
                'exclude_from_search' => true,
                'show_in_nav_menus'   => true,
                'public'              => true,
                'show_ui'             => current_user_can( 'bbp_forums_admin' ),
                'can_export'          => true,
                'hierarchical'        => true,
                'query_var'           => true,
                'menu_icon'           => '',
                'show_in_menu'        => false,
            ) )
        );

        add_post_type_support( bbp_get_forum_post_type(), 'thumbnail' );

        /** Topics ************************************************************/

        // Register Topic content type
        register_post_type(
            bbp_get_topic_post_type(),
            apply_filters( 'bbp_register_topic_post_type', array(
                'labels'              => bbp_get_topic_post_type_labels(),
                'rewrite'             => bbp_get_topic_post_type_rewrite(),
                'supports'            => bbp_get_topic_post_type_supports(),
                'description'         => __( 'Forum Discussions', 'buddyboss' ),
                'capabilities'        => bbp_get_topic_caps(),
                'capability_type'     => array( 'topic', 'topics' ),
                'menu_position'       => 555555,
                'has_archive'         => ( 'forums' === bbp_show_on_root() ) ? bbp_get_topic_archive_slug() : false,
                'exclude_from_search' => true,
                'show_in_nav_menus'   => false,
                'public'              => true,
                'show_ui'             => current_user_can( 'bbp_topics_admin' ),
                'can_export'          => true,
                'hierarchical'        => false,
                'query_var'           => true,
                'menu_icon'           => '',
                'show_in_menu'        => false,
            )
        ) );

        /** Replies ***********************************************************/

        // Register reply content type
        register_post_type(
            bbp_get_reply_post_type(),
            apply_filters( 'bbp_register_reply_post_type', array(
                'labels'              => bbp_get_reply_post_type_labels(),
                'rewrite'             => bbp_get_reply_post_type_rewrite(),
                'supports'            => bbp_get_reply_post_type_supports(),
                'description'         => __( 'Forum Replies', 'buddyboss' ),
                'capabilities'        => bbp_get_reply_caps(),
                'capability_type'     => array( 'reply', 'replies' ),
                'menu_position'       => 555555,
                'exclude_from_search' => true,
                'has_archive'         => false,
                'show_in_nav_menus'   => false,
                'public'              => true,
                'show_ui'             => current_user_can( 'bbp_replies_admin' ),
                'can_export'          => true,
                'hierarchical'        => false,
                'query_var'           => true,
                'menu_icon'           => '',
                'show_in_menu'        => false,
            ) )
        );
    }