Add py.typed marker for PEP 561 compliance

[arijitroy003]

Summary

Adds a py.typed marker file to enable type checkers to use the inline type hints already present in the package.

Changes

• Created empty py.typed marker file in src/guidellm/
• Updated pyproject.toml to include py.typed in package data

Testing

Verified by checking:

• File exists in correct location (src/guidellm/py.typed)
• Package data configuration includes the marker file

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git log

commit 99d0de3
Author: arijitroy003 arijitroy003@gmail.com
Date: Thu Jul 23 20:30:00 2026 +0530

Add py.typed marker for PEP 561 compliance

Signed-off-by: arijitroy003 <arijitroy003@gmail.com>

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Signed-off-by: arijitroy003 arijitroy003@gmail.com

[dbutenhof]

This is interesting -- I'd never heard of this protocol before, but it appears to be legit. On the other hand, our quality-checks run seems hung -- no indication there's any relationship to the change, and it's probably just GitHub... 🤔