246     private $grantType;  variable in Google\\Auth\\OAuth2
486         $grantType = $this->getGrantType();
487         $params = array('grant_type' => $grantType);
488         switch ($grantType) {
513                 if (!is_null($grantType)) {
514                     $params['grant_type'] = $grantType;
853         if (!is_null($this->grantType)) {
854             return $this->grantType;
881      * @param string $grantType
885     public function setGrantType($grantType)  argument
887         if (in_array($grantType, self::$knownGrantTypes)) {
888             $this->grantType = $grantType;
891             if (!$this->isAbsoluteUri($grantType)) {
896             $this->grantType = (string)$grantType;