# DefaultMessageMetadataByModality

Defined in: packages/ai/src/types.ts:3340

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:3343

***

### document

```ts
document: unknown;
```

Defined in: packages/ai/src/types.ts:3345

***

### image

```ts
image: unknown;
```

Defined in: packages/ai/src/types.ts:3342

***

### text

```ts
text: unknown;
```

Defined in: packages/ai/src/types.ts:3341

***

### video

```ts
video: unknown;
```

Defined in: packages/ai/src/types.ts:3344