mtv\wp\models\User::signon PHP Method

    public static function signon($kwargs)
    {
        $creds = array();
        if (!empty($kwargs['user_login'])) {
            $creds['user_login'] = $kwargs['user_login'];
        } elseif (!empty($kwargs['user_email'])) {
            $collection = static::$collection;
            $user = $collection::get_by(array('user_email' => $kwargs['user_email']));
            $creds['user_login'] = $user->user_login;
        } else {
            throw new JsonableException(__("Please enter your user name or email address.", 'mtv'));
        }
        if (empty($kwargs['user_pass'])) {
            throw new JsonableException(__('Please enter your password.', 'mtv'));
        }
        $creds['user_password'] = $kwargs['user_pass'];
        $result = wp_signon($creds, true);
        if (is_wp_error($result)) {
            throw new WPException($result);
        } else {
            // TODO:
            // Implement "remember me" functionality with wp_set_auth_cookie
            wp_set_auth_cookie($result->ID, true);
            // wp_set_current_user($result->ID);
        }
        $user = new static(array('id' => $result->ID));
        $user->fetch();
        return $user;
    }