within /addons/web/static/src/legacy/js/fields/field_utils.js line 298 :

there is this function :
function formatX2Many(value) {
    if (value.data.length === 0) {
        return _t('No records');
    } else if (value.data.length === 1) {
        return _t('1 record');
    } else {
        return value.data.length + _t(' records');
    }
}

i need to inherit/extend and change its functionality 
odoo.define('mymodule.field_utils', function (require) {
    "use strict";

    var FieldUtils = require('web.field_utils');
    var core = require('web.core');
    var _t = core._t;

  

    FieldUtils.include({
        overridefunc: function(value) {
            this._super.apply(this, arguments);
            

            if (!value || !value.data || !value.data.length) {
                return _t('No records');
            } else if (value.data.length === 0) {
                return _t('No records');
            } else if (value.data.length === 1) {
                return _t('1 record');
            } else {
                return value.data.length + _t(' records');
            }
        },
    });
});

error : error while loading mymodule.field_utils: field_utils is not a function
similar errors due when i try extend