# DefaultMessageMetadataByModality

Defined in: [packages/ai/src/types.ts:3412](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3412)

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:3415](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3415)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:3417](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3417)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:3414](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3414)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:3413](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3413)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:3416](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3416)