📝 Description

get_store_artifact in the Store Manager does not allow empty resources by default. This includes cases such as:

• An empty target path for a PKL-based artifact
• A missing model_uri (ModelArtifact) for an LLMPromptArtifact

🛠️ Changes Made

1. Allow _get_artifact_object in the Model class to return artifacts with empty resources by passing allow_empty_resources=True.
2. Raise an error if predict and async_predict are not overridden and there is no ModelArtifact.
3. Fix all MLRunInvalidArgumentError raises (required dict instead of str)

✅ Checklist

• I updated the documentation (if applicable)
• I have tested the changes in this PR
• I confirmed whether my changes are covered by system tests
  • If yes, I ran all relevant system tests and ensured they passed before submitting this PR
  • I updated existing system tests and/or added new ones if needed to cover my changes
• If I introduced a deprecation:
  • I followed the Deprecation Guidelines
  • I updated the relevant Jira ticket for documentation

🧪 Testing

🔗 References

• Ticket link: ML-11767
• Design docs links:
• External links:

🚨 Breaking Changes?

• Yes (explain below)
• No

🔍️ Additional Notes