# ThinkingPart

# Interface: ThinkingPart

Defined in: [packages/typescript/ai/src/types.ts:362](https://github.com/TanStack/ai/blob/main/packages/typescript/ai/src/types.ts#L362)

## Properties

### content

```ts
content: string;
```

Defined in: [packages/typescript/ai/src/types.ts:364](https://github.com/TanStack/ai/blob/main/packages/typescript/ai/src/types.ts#L364)

***

### signature?

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

Defined in: [packages/typescript/ai/src/types.ts:366](https://github.com/TanStack/ai/blob/main/packages/typescript/ai/src/types.ts#L366)

***

### stepId?

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

Defined in: [packages/typescript/ai/src/types.ts:365](https://github.com/TanStack/ai/blob/main/packages/typescript/ai/src/types.ts#L365)

***

### type

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

Defined in: [packages/typescript/ai/src/types.ts:363](https://github.com/TanStack/ai/blob/main/packages/typescript/ai/src/types.ts#L363)