If an access token isn't present upon signing the API request, don't attempt to refresh a non-existent token.
If an access token isn't present upon signing the API request, don't attempt to refresh a non-existent token.


marcj/google-api-php-client,marcj/google-api-php-client,iJanki/google-api-php-client,iJanki/google-api-php-client,Exercise/google-api-php-client,Exercise/google-api-php-client