Use my class

Hi,
I have a class file, APPPATH.'ThirdParty/EmailValidation/EmailValidation.php' this file is found:
https://github.com/nsgeorgi/verify-email...yEmail.php
In simple PHP examle this file using:

PHP Code:

include_once 'class.verifyEmail.php';

        $email = '[email protected]';

        $vmail = new verifyEmail();

        if ($vmail->check($email)) {
            echo 'email <' . $email . '> exist!';
        } elseif ($vmail->isValid($email)) {
            echo 'email <' . $email . '> valid, but not exist!';
        } else {
            echo 'email <' . $email . '> not valid and not exist!';
        } 


How to use this EmailValidation class, in my controllers?