> ISPO SDK documentation. [HTML](https://ispo.ai/docs/interfaces/core.ChatCompanionOpenArgs.html) · [Documentation index](https://ispo.ai/docs/llms.txt)

# Interface ChatCompanionOpenArgs

`chats.open` input. A selector must identify a live caller-owned driven Chat. Task-bound chat handles are intentionally not part of the SDK.

```typescript
interface ChatCompanionOpenArgs {
    sessionId: string;
}
```

Types: [sessionId](#sessionid)

##### Index

### <a id="properties"></a>Properties

[sessionId](#sessionid)

## <a id="properties-1"></a>Properties

### <a id="sessionid"></a>sessionId

```typescript
sessionId: string
```