> ## Documentation Index
> Fetch the complete documentation index at: https://wb-21fd5541-typedoc-upgrade.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Message

> TypeScript SDK reference

Defined in: [src/genai/types.ts:15](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L15)

## Properties

### content?

> `optional` **content?**: `string`

Defined in: [src/genai/types.ts:17](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L17)

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### parts?

> `optional` **parts?**: [`MessagePart`](../type-aliases/messagepart)\[]

Defined in: [src/genai/types.ts:20](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L20)

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### role

> **role**: [`Role`](../type-aliases/role)

Defined in: [src/genai/types.ts:16](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L16)

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### toolCallId?

> `optional` **toolCallId?**: `string`

Defined in: [src/genai/types.ts:18](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L18)

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### toolName?

> `optional` **toolName?**: `string`

Defined in: [src/genai/types.ts:19](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L19)