[Partner Nodes] add Luma UNI-1 model

[bigcat88]

API Node PR Checklist

Scope

• Is API Node Change

Pricing & Billing

• Need pricing update
• No pricing update

If Need pricing update:

• Metronome rate cards updated
• Auto‑billing tests updated and passing

QA

• QA done
• QA not required

Comms

• Informed Kosinkadink

[coderabbitai]

📝 Walkthrough

Walkthrough

The PR updates the Luma nodes module to support UNI-1 generation capabilities. Type annotations in existing execute methods are modernized from Optional[T] to T | None union syntax. New helper functions are introduced to manage UNI-1 workflow steps: building input schemas, uploading reference images, and submitting/polling generation requests. Two new node classes—LumaImageNode for text-to-image and LumaImageEditNode for image editing—are added with UNI-1-specific validation rules (prompt length constraints, style+aspect ratio combinations) and request construction using Luma2GenerationRequest. The extension's node registry is updated to expose these new nodes.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title '[Partner Nodes] add Luma UNI-1 model' clearly and concisely describes the main change: adding support for Luma's UNI-1 model as partner nodes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The PR description is a checklist related to API Node changes, pricing updates, QA, and communications for Luma UNI-1 model implementation.

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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@comfy_api_nodes/nodes_luma.py`:
- Line 827: validate_string is currently called on the raw prompt which allows
whitespace-only strings; change both calls that read validate_string(prompt,
min_length=1, max_length=6000) to validate_string(prompt.strip(), min_length=1,
max_length=6000) so the prompt is trimmed first and whitespace-only input is
rejected (apply the same change for the second occurrence in the file).
- Around line 681-689: The code currently uploads all entries in refs via
upload_image_to_comfyapi before enforcing max_count; change the logic in the
function handling refs to validate the number of provided references against
max_count before any calls to upload_image_to_comfyapi (or alternatively only
iterate up to max_count and skip/raise for extras). Specifically, check if refs
is truthy and then if len(refs) > max_count raise ValueError (or enforce a
slice) prior to the for loop that calls upload_image_to_comfyapi and constructs
Luma2ImageRef (ensure cls is still passed correctly to
upload_image_to_comfyapi).

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: b03eeb61-798a-4c06-a7e0-eff0664f977a

📥 Commits

Reviewing files that changed from the base of the PR and between fed8d5e and 037efe7.

⛔ Files ignored due to path filters (1)

• comfy_api_nodes/apis/luma.py is excluded by !comfy_api_nodes/apis/**

📒 Files selected for processing (1)

• comfy_api_nodes/nodes_luma.py