# `SessionState`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Interface · `import type { SessionState } from '@holostep-configurators/runtime-client/contract';` · stable · since 2.0.0 · section 5. Writers, transactions, session

Recorded state plus the look. [`applyPatch`](Writer.applyPatch.md) targets this shape. Read class: intent.

## Members

| Member | Kind | Summary |
| --- | --- | --- |
| <a id="model"></a>[`model`](SessionState.model.md) | property | Recorded: the scene model. |
| <a id="connections"></a>[`connections`](SessionState.connections.md) | property | Recorded: the connections between nodes ([`assembly.connections()`](Assembly.connections.md)). |
| <a id="checkpoint"></a>[`checkpoint`](SessionState.checkpoint.md) | property | Recorded: the page state you stored with a commit (`checkpoint` option); null when none. |
| <a id="look"></a>[`look`](SessionState.look.md) | property | Look only, never recorded or priced: named materials, both blocks of rules, the collections and the stage layers' order. |

## Declaration

```ts
export interface SessionState {
  readonly model: DeepReadonly<SceneModel>;
  readonly connections: readonly Connection[];
  readonly checkpoint: JsonValue | null;
  readonly look: LookState;
}
```

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `SessionState` names no product |
| 2. A precedent | not recorded: no ledger row (coverage.json) names this member or its owner |
| 3. Two apps, or labs | not recorded: no ledger row names this member or its owner |
| 4. The cheaper fix first | not recorded per member (Appendix B decides it per need) |