/**
  * {@inheritdoc}
  */
 public function save(Token $token)
 {
     $this->token = $token;
     $this->expireTime = $token->lifetime() + time();
 }
 /**
  * {@inheritdoc}
  */
 public function save(Token $token)
 {
     $expireTime = time() + $token->lifetime();
     $data = json_encode(['expireTime' => $expireTime, 'token' => $token->accessToken()]);
     file_put_contents($this->path, $data);
 }