> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wandb.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Role

> TypeScript SDK reference

# Role

Ƭ **Role**: `"user"` | `"assistant"` | `"system"` | `"tool"`

Public data types for the Weave GenAI session SDK.

#### Defined in

[genai/types.ts:5](https://github.com/wandb/weave/blob/6538626556c93d6f31ae725fdefe4e6b8b71bc2c/sdks/node/src/genai/types.ts#L5)

## Functions