Class LookupRequest not found

[sirko-uhl]

GAE standard php72
I'm getting this error and found no Solution :-( Have you any Ideas?

Error: Class 'google\appengine\datastore\v4\LookupRequest' not found
at GDS\Gateway\ProtoBuf->fetchByKeyPart (/srv/vendor/tomwalder/php-gds/src/GDS/Gateway/ProtoBuf.php:179)
at GDS\Gateway->fetchByNames (/srv/vendor/tomwalder/php-gds/src/GDS/Gateway.php:194)
at GDS\Gateway->fetchByName (/srv/vendor/tomwalder/php-gds/src/GDS/Gateway.php:122)
at GDS\Store->fetchByName (/srv/vendor/tomwalder/php-gds/src/GDS/Store.php:184)
at GDS\Session\Handler->read (/srv/vendor/tomwalder/php-gds-session/src/GDS/Session/Handler.php:176)
at session_start ([internal function])
at GDS\Session\Handler::start (/srv/vendor/tomwalder/php-gds-session/src/GDS/Session/Handler.php:105)
at {main} (/srv/bootstrap.php:12)

composer.json

"require": {
    "php": ">=5.3.0",
    "google/cloud-logging": "^1.16",
    "google/cloud-error-reporting": "^0.14.4",
    "google/cloud-storage": "^1.12",
    "google/cloud-datastore": "^1.9",
    "monolog/monolog": "^1.24",
    "league/flysystem-sftp": "^1.0",
    "aws/aws-sdk-php": "^3.94",
    "vlucas/phpdotenv": "^3.3",
    "php-http/guzzle6-adapter": "^1.1",
    "bugsnag/bugsnag": "^3.16",
    "mailgun/mailgun-php": "~2.0",
    "paragonie/random_compat": "<9.99",
    "tomwalder/php-gds-session": "v1.0.0",
    "google/apiclient": "^2.2"
  }

[barbax]

I guess this library is intended to be used with php55 where you already have included some custom php library (i.e. google\appengine\ ... ). In Php72 you can no longer access to those lybraries and you are intended to use the php Client Library that have a different namespace (google/cloud). I think must be added the support to the php Client Library in order to be used on php72 standard, and actually any container.