# TextPart

Defined in: [packages/ai/src/types.ts:420](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L420)

Message parts - building blocks of UIMessage

## Type Parameters

### TMetadata

`TMetadata` = `unknown`

## Properties

### content

```ts
content: string;
```

Defined in: [packages/ai/src/types.ts:422](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L422)

***

### metadata?

```ts
optional metadata?: TMetadata;
```

Defined in: [packages/ai/src/types.ts:423](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L423)

***

### type

```ts
type: "text";
```

Defined in: [packages/ai/src/types.ts:421](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L421)