Week 8 Day 1: Fix Deprecation Issues for Future Compatibility

[amil101]

Description:

The following deprecations have been addressed to ensure future compatibility:

1. Explicitly added source to prevent deprecation warnings.
2. Replaced modal.Function.lookup with modal.Function.from_name as per the latest recommendations.

These changes align with the Modal 1.0 migration guide.

Next Steps:

• Review and confirm that all deprecated usages have been updated.
• Test to ensure no functionality is broken.