> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# InputReference

A reference asset used to guide video generation. Image references are supported by all providers; audio and video references are only honored by providers that support them (including BytePlus Seedance generation 2 and newer).

## Supported Types

### `components.ContentPartAudio`

```python theme={null}
value: components.ContentPartAudio = /* values here */
```

### `components.ContentPartImage`

```python theme={null}
value: components.ContentPartImage = /* values here */
```

### `components.ContentPartVideo`

```python theme={null}
value: components.ContentPartVideo = /* values here */
```