WP_Import::allow_fetch_attachments PHP Method

        function allow_fetch_attachments()
        {
            return apply_filters('import_allow_fetch_attachments', true);
        }

/**
 * FILE: vibeimport.php 
 * Author: Mr.Vibe 
 * Credits: www.VibeThemes.com
 * Project: WPLMS
 */
function vibe_import($file)
{
    require_once ABSPATH . 'wp-admin/includes/import.php';
    $file_path = apply_filters('wplms_setup_import_file_path', VIBE_PATH . "/setup/data/{$file}.xml", $file);
    if (!class_exists('WP_Import')) {
        require_once 'wordpress-importer.php';
    }
    if (class_exists('WP_Import')) {
        if (file_exists($file_path)) {
            do_action('wplms_before_sample_data_import', $file);
            $WP_Import = new WP_Import();
            if (!function_exists('wp_insert_category')) {
                include ABSPATH . 'wp-admin/includes/taxonomy.php';
            }
            if (!function_exists('post_exists')) {
                include ABSPATH . 'wp-admin/includes/post.php';
            }
            if (!function_exists('comment_exists')) {
                include ABSPATH . 'wp-admin/includes/comment.php';
            }
            $WP_Import->fetch_attachments = true;
            $WP_Import->allow_fetch_attachments();
            $WP_Import->import($file_path);
            do_action('wplms_after_sample_data_import', $file);
            _e('Import Complete !', 'vibe');
        } else {
            echo __("Unable to locate Sample Data file.", 'vibe');
        }
    } else {
        echo __("Couldn't install the test demo data as we were unable to use the WP_Import class.", "vibe");
    }
}