psychedelicious df81f3274a feat(nodes): improved pydantic type annotation massaging
When we do our field type overrides to allow invocations to be instantiated without all required fields, we were not modifying the annotation of the field but did set the default value of the field to `None`.

This results in an error when doing a ser/de round trip. Here's what we end up doing:

```py
from pydantic import BaseModel, Field

class MyModel(BaseModel):
    foo: str = Field(default=None)
```

And here is a simple round-trip, which should not error but which does:

```py
MyModel(**MyModel().model_dump())
# ValidationError: 1 validation error for MyModel
# foo
#   Input should be a valid string [type=string_type, input_value=None, input_type=NoneType]
#     For further information visit https://errors.pydantic.dev/2.11/v/string_type
```

To fix this, we now check every incoming field and update its annotation to match its default value. In other words, when we override the default field value to `None`, we make its type annotation `<original type> | None`.

This prevents the error during deserialization.

This slightly alters the schema for all invocations and outputs - the values of all fields without default values are now typed as `<original type> | None`, reflecting the overrides.

This means the autogenerated types for fields have also changed for fields without defaults:

```ts
// Old
image?: components["schemas"]["ImageField"];

// New
image?: components["schemas"]["ImageField"] | null;
```

This does not break anything on the frontend.
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project hero

Invoke - Professional Creative AI Tools for Visual Media

To learn more about Invoke, or implement our Business solutions, visit invoke.com

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Invoke is a leading creative engine built to empower professionals and enthusiasts alike. Generate and create stunning visual media using the latest AI-driven technologies. Invoke offers an industry leading web-based UI, and serves as the foundation for multiple commercial products.

Invoke is available in two editions:

Community Edition Professional Edition
For users looking for a locally installed, self-hosted and self-managed service For users or teams looking for a cloud-hosted, fully managed service
- Free to use under a commercially-friendly license - Monthly subscription fee with three different plan levels
- Download and install on compatible hardware - Offers additional benefits, including multi-user support, improved model training, and more
- Includes all core studio features: generate, refine, iterate on images, and build workflows - Hosted in the cloud for easy, secure model access and scalability
Quick Start -> Installation and Updates More Information -> www.invoke.com/pricing

Highlighted Features - Canvas and Workflows

Documentation

Quick Links
Installation and Updates - Documentation and Tutorials - Bug Reports - Contributing

Installation

To get started with Invoke, Download the Installer.

For detailed step by step instructions, or for instructions on manual/docker installations, visit our documentation on Installation and Updates

Troubleshooting, FAQ and Support

Please review our FAQ for solutions to common installation problems and other issues.

For more help, please join our Discord.

Features

Full details on features can be found in our documentation.

Web Server & UI

Invoke runs a locally hosted web server & React UI with an industry-leading user experience.

Unified Canvas

The Unified Canvas is a fully integrated canvas implementation with support for all core generation capabilities, in/out-painting, brush tools, and more. This creative tool unlocks the capability for artists to create with AI as a creative collaborator, and can be used to augment AI-generated imagery, sketches, photography, renders, and more.

Workflows & Nodes

Invoke offers a fully featured workflow management solution, enabling users to combine the power of node-based workflows with the easy of a UI. This allows for customizable generation pipelines to be developed and shared by users looking to create specific workflows to support their production use-cases.

Invoke features an organized gallery system for easily storing, accessing, and remixing your content in the Invoke workspace. Images can be dragged/dropped onto any Image-base UI element in the application, and rich metadata within the Image allows for easy recall of key prompts or settings used in your workflow.

Other features

  • Support for both ckpt and diffusers models
  • SD1.5, SD2.0, SDXL, and FLUX support
  • Upscaling Tools
  • Embedding Manager & Support
  • Model Manager & Support
  • Workflow creation & management
  • Node-Based Architecture

Contributing

Anyone who wishes to contribute to this project - whether documentation, features, bug fixes, code cleanup, testing, or code reviews - is very much encouraged to do so.

Get started with contributing by reading our contribution documentation, joining the #dev-chat or the GitHub discussion board.

We hope you enjoy using Invoke as much as we enjoy creating it, and we hope you will elect to become part of our community.

Thanks

Invoke is a combined effort of passionate and talented people from across the world. We thank them for their time, hard work and effort.

Original portions of the software are Copyright © 2024 by respective contributors.

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