---
title: "vuer.schemas.vuer_components"
section: "Schemas"
order: 1800
description: "Python API reference for vuer.schemas.vuer_components"
---

# vuer.schemas.vuer_components

## ContribLoader

```python
class ContribLoader(SceneElement)
```

[Source](https://github.com/vuer-ai/vuer-docs/blob/main/src/vuer/schemas/vuer_components.py#L5)

ContribLoader is a specialized SceneElement responsible for handling
external library contributions. It manages the loading of a library
including its version, entry point, and development mode flag.

the library needs to be in umd format, and accesses the shared vuer
components via globals:

```typescript
declare global {
  interface Window {
    React: typeof React;
    ReactDOM: typeof ReactDOM;
    VUER: typeof VUER;
    THREE: typeof THREE;
    JSX: typeof JSX;
    FIBER: typeof FIBER;
  }
}
```

Attributes:
    tag (private str): Identifier for the component. Default is "ContribLoader".

    url (str | None): The URL from which the external library is loaded.
    library (str | None): The name of the external library being managed.
    version (str): The version of the external library. Default is "latest".
    main (str): The relative path to the main entry point of the library.
                Default is "dist/index.js". This needs to be an umd module.
    dev (bool): A flag to denote whether the library is in development mode.
                Default is False. When in development mode, it loads from
                `third_party/${fileName}?ts=${Date.now()}`

### Inherited members

- `children` — from [`vuer.schemas.html_components.BlockElement`](/python-api/schemas/html_components#blockelement)
- `__init__` — from [`vuer.schemas.html_components.BlockElement`](/python-api/schemas/html_components#blockelement)

```python
tag = 'ContribLoader'
```

```python
url = None
```

```python
library = None
```

```python
version = 'latest'
```

```python
main = 'dist/index.js'
```

```python
dev = False
```

## Public imports

These symbols are available from this module. Their definitions are documented in the linked modules.

- [`SceneElement`](/python-api/schemas/scene_components#sceneelement) — `vuer.schemas.scene_components.SceneElement`