# DefaultMessageMetadataByModality

Defined in: [packages/ai/src/types.ts:3381](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3381)

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:3384](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3384)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:3386](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3386)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:3383](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3383)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:3382](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3382)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:3385](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3385)