---
title: WorkspaceOf
description: A type that the Authoring surface names.
---

# `WorkspaceOf`

Type, in `@jr2/orchestrator/src/customize.ts`. It is type plumbing: it computes a type from the types of a Machine or of its parts, and a workflow module does not write it. The signature of an export, or a type that it names, names this type, so its declaration is here. The [Authoring surface](../authoring-surface.md) page lists each export.

```ts
type WorkspaceOf<M extends AnyStateMachine> =
  M extends JR2Repos<any> ? M : M extends JR2Wrapper<infer TBody> ? WorkspaceOf<TBody> : never;
```