# DefaultMessageMetadataByModality

Defined in: [packages/ai/src/types.ts:3388](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3388)

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:3391](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3391)

***

### document

```ts
document: unknown;
```

Defined in: [packages/ai/src/types.ts:3393](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3393)

***

### image

```ts
image: unknown;
```

Defined in: [packages/ai/src/types.ts:3390](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3390)

***

### text

```ts
text: unknown;
```

Defined in: [packages/ai/src/types.ts:3389](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3389)

***

### video

```ts
video: unknown;
```

Defined in: [packages/ai/src/types.ts:3392](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L3392)