> ## 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.

# Role

> TypeScript SDK reference

> **Role** = `"user"` | `"assistant"` | `"system"` | `"tool"` | `"developer"` | `"function"`

Defined in: [src/genai/types.ts:5](https://github.com/wandb/weave/blob/8c5f077eb11c42b84000726ff20504abc728d3fb/sdks/node/src/genai/types.ts#L5)

Public data types for the Weave GenAI conversation SDK.