239     private $issuedAt;  variable in Google\\Auth\\OAuth2
1226             $this->issuedAt = null;
1228             $this->issuedAt = time();
1244         if (!is_null($this->issuedAt) && !is_null($this->expiresIn)) {
1245             return $this->issuedAt + $this->expiresIn;
1282         return $this->issuedAt;
1288      * @param int $issuedAt
1291     public function setIssuedAt($issuedAt)  argument
1293         $this->issuedAt = $issuedAt;
1405         if ($issuedAt = $this->getIssuedAt()) {
1406             $authToken['issued_at'] = $issuedAt;