# DefaultMessageMetadataByModality

Defined in: [packages/ai/src/types.ts:2621](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2621)

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:2624](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2624)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:2626](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2626)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:2623](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2623)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:2622](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2622)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:2625](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2625)