# DefaultMessageMetadataByModality

Defined in: [packages/ai/src/types.ts:2947](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2947)

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:2950](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2950)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:2952](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2952)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:2949](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2949)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:2948](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2948)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:2951](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L2951)