Multiple issues with dump

[MarcHagen]

Im trying to add these stub file to work with PHPStan so it can resolve some of the classes and functions within the WHMCS blackbox.

Unfortuanlly im encountering some problems that should be indeed fixed..

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PHP Fatal error:  Cannot redeclare widgetOutput() (previously declared in oblak\whmcs-stubs\whmcs\whmcs.php:259027) in oblak\whmcs-stubs\whmcs\whmcs.php on line 259037

PHP Fatal error:  Class Doctrine\Common\Annotations\DocLexer contains 3 abstract methods and must therefore be declared abstract or implement the remaining methods (Doctrine\Common\Lexer\AbstractLexer::getCatchablePatterns, Doctrine\Common\Lexer\AbstractLexer::getNonCatchablePatterns, Doctrine\Common\Lexer\
AbstractLexer::getType) in oblak\whmcs-stubs\whmcs\whmcs.php on line 82826

PHP Fatal error:  Class JMS\Serializer\TypeParser contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (JMS\Parser\AbstractParser::parseInternal) in oblak\whmcs-stubs\whmcs\whmcs.php on line 84758

PHP Fatal error:  Class WHMCS\Module\Storage\EncryptedTransientStorage contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (WHMCS\Module\Storage\AbstractDataStorage::readDataFromStorage, WHMCS\Module\Storage\AbstractDataStorage::writeDataToStorage) in oblak\whmcs-stubs\whmcs\whmcs.php on line 192427

PHP Fatal error:  Cannot redeclare licensing_clientarea() (previously declared in oblak\whmcs-stubs\whmcs\whmcs.php:262715) in oblak\whmcs-stubs\whmcs\whmcs.php on line 263182

These are errors because I've also added the illuminate packages to composer.json, and these should be removed from this dump or get a function_exists wrapper.
Makes no sense to me why these are dump within this stub file as we can just include the actual source files.

PHP Fatal error:  Cannot redeclare e() (previously declared in illuminate\support\helpers.php:252) in oblak\whmcs-stubs\whmcs\whmcs.php on line 266617

and more

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composer.json

  "require-dev": {
    "illuminate/contracts": "7.12.0",
    "illuminate/database": "7.12.0",
    "illuminate/support": "7.12.0",
    "smarty/smarty": "3.1.36",
    "oblak/whmcs-stubs": "7.10.2"
  },

[MarcHagen]

Any suggestions @seebeen ?

[seebeen]

Hello Mark.

Which version of WHMCS are you developing with?

[AnrDaemon]

I confirm most of these issues, plus redeclaring PHP extensions' functions was a bad idea.
As well as including Smarty/Symfony/etc. declarations in the dump. Very, very bad idea.
I think slitting this into multiple files, and providing only WHMCS own declarations would be a much better idea.