Bug in example about soap-client HOT 4 OPEN

user@DESKTOP-UU4MHEL MINGW64 /c/xxx
$ git clone https://github.com/goetas-webservices/soap-client.git
Cloning into 'soap-client'...
remote: Enumerating objects: 28, done.
remote: Counting objects: 100% (28/28), done.
remote: Compressing objects: 100% (23/23), done.
Receiviremote: Total 987 (delta 9), reused 7 (delta 2), pack-reused 959
Receiving objects: 100% (987/987), 234.07 KiB | 339.00 KiB/s, done.
Resolving deltas: 100% (544/544), done.

$ cd soap-client/
$ composer install
Package operations: 66 installs, 0 updates, 0 removals
(...)
Writing lock file
Generating autoload files

$ php bin/soap-client generate tests/Fixtures/config.yml soap/src/Container --dest-class=TestNs/Container/SoapClientContainer

$ php tests/example.php
PHP Fatal error:  Uncaught Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: The "goetas_webservices.soap_client.metadata_reader" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead. in C:\xxx\soap-client\vendor\symfony\dependency-injection\Container.php:269
Stack trace:
#0 C:\xxx\soap-client\vendor\symfony\dependency-injection\Container.php(225): Symfony\Component\DependencyInjection\Container->make('goetas_webservi...', 1)
#1 C:\xxx\soap-client\tests\example.php(24): Symfony\Component\DependencyInjection\Container->get('goetas_webservi...')
#2 {main}
  thrown in C:\xxx\soap-client\vendor\symfony\dependency-injection\Container.php on line 269

Fatal error: Uncaught Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: The "goetas_webservices.soap_client.metadata_reader" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead. in C:\xxx\soap-client\vendor\symfony\dependency-injection\Container.php on line 269

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: The "goetas_webservices.soap_client.metadata_reader" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead. in C:\xxx\soap-client\vendor\symfony\dependency-injection\Container.php on line 269

$ php -v
PHP 7.3.7 (cli) (built: Jul  3 2019 14:34:10) ( ZTS MSVC15 (Visual C++ 2017) x64 )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.7, Copyright (c) 1998-2018 Zend Technologies
    with Xdebug v2.9.1, Copyright (c) 2002-2020, by Derick Rethans```