# DefaultMessageMetadataByModality

Defined in: [packages/ai/src/types.ts:2887](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2887)

Default metadata type for adapters that don't define custom metadata.
Uses unknown for all modalities.

## Properties

### audio

```ts
audio: unknown;
```

Defined in: [packages/ai/src/types.ts:2890](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2890)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:2892](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2892)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:2889](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2889)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:2888](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2888)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:2891](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2891)