Problems with native class ArrayAccess as Interface

[jg-development]

When I try to reflect a class with arrayaccess interface it does not work: https://github.com/docusign/docusign-esign-php-client/blob/master/src/Model/AccessCodeFormat.php

Roave\BetterReflection\Reflection\ReflectionClass "ArrayAccess" could not be found in the located source