newPrintTask() uses uninitialized $contentType with Cups Driver

[wgnann]

Laravel Printing Version

Commit 76ef855

Laravel Version

v8.83.27

Print Driver

Cups

Bug description

Hello,

When using:

$printJob = CupsPrinting::newPrintTask()
    ->printer($id)
    ->file($this->printing->filepath_processed)
    ->send();

just as told in README.md, the send() uses PrintTask's $contentType attribute uninitialized. The method ensureValidJob() expects $contentType to be defined.

Reading the code, $contentType seems to be defined when the method content(...) is called. But I think it is not called anywhere (at least using the example). The method that fills $content seems to be the base PrintTask's file().

Steps to reproduce

Use Cups Driver to print anything.

Relevant log output

Typed property Rawilk\Printing\Drivers\Cups\PrintTask::$contentType must not be accessed before initialization