# DefaultMessageMetadataByModality

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

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:3420](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3420)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:3422](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3422)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:3419](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3419)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:3418](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3418)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:3421](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3421)