Pyright type check breaks with version 2.8.0

[Calcifer777]

Describe the bug
The instantiation of a class decorated with the @component decorator fails with a type check error. Also, the type checker does not recognize the parameters.

This seems related to the deprecation fo the is_greedy parameter, as it is the only change between this release and the previous one (2.7.0)

Error message
Argument missing for parameter "cls"

Expected behavior
No type-check error.

To Reproduce
Type-check any pipeline instantiated with the library using Pyright

FAQ Check

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System:

• OS: linux
• GPU/CPU: cpu
• Haystack version (commit or version number): 2.8.0
• DocumentStore: N/A
• Reader: N/A
• Retriever: N/A

[kaqmak]

I can confirm this. Pyright complains. Basically all code with a component breaks the type check.
Running

• pyright=1.1.390
• python 3.12

[lbux]

This is interesting! I was wondering why hovering over a component no longer showed the Docstring information. For example, haystack-ai == 2.8.0:

If I downgrade my package to 2.70:

I wonder if this is also related.