# ThinkingPart

# Interface: ThinkingPart

Defined in: [packages/ai/src/types.ts:433](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L433)

## Properties

### content

```ts
content: string;
```

Defined in: [packages/ai/src/types.ts:435](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L435)

***

### signature?

```ts
optional signature?: string;
```

Defined in: [packages/ai/src/types.ts:437](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L437)

***

### stepId?

```ts
optional stepId?: string;
```

Defined in: [packages/ai/src/types.ts:436](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L436)

***

### type

```ts
type: "thinking";
```

Defined in: [packages/ai/src/types.ts:434](https://github.com/TanStack/ai/blob/main/packages/ai/src/types.ts#L434)