Array
(
    [responseStatus] => SUCCESS
    [tokens] => Array
        (
            [0] => Array
                (
                    [document_id__v] => 297402
                    [errorType] => OPERATION_NOT_ALLOWED
                    [errors] => Array
                        (
                            [0] => Array
                                (
                                    [type] => INVALID_DOCUMENT
                                    [message] => Document not found [297402].
                                )

                        )

                )

        )

)


Warning:  Undefined array key "token__v" in /var/www/html/app/modules/vault-api/viewer.php on line 63



Fatal error:  Uncaught TypeError: Viewer::token(): Return value must be of type string, null returned in /var/www/html/app/modules/vault-api/viewer.php:63
Stack trace:
#0 /var/www/html/len4prep/doc-by-id/index.php(63): Viewer->token(297402)
#1 {main}
  thrown in /var/www/html/app/modules/vault-api/viewer.php on line 63