# builder.WorkspaceApplyMilestone

**Workspace Manager concept example** A working example of the core library. It can change without notice.

- **Module:** builder
- **Package:** @libtmux/workspace
- **Language:** TypeScript
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-ts/blob/073b9d7dedad900bff6f5ec0ea47794e40225870/packages/workspace/src/builder.ts#L59
- **Page:** https://libtmux.org/en/ts/latest/workspace/reference/builder-workspaceapplymilestone/

```ts
type WorkspaceApplyMilestone = | { readonly kind: "session"; readonly status: "created" | "existing" }
| { readonly kind: "session-claimed" }
| { readonly kind: "workspace-option"; readonly name: string }
| { readonly index: number; readonly kind: "window" }
| { readonly kind: "windows-reconciled" }
```

A high-level apply operation that finished before a later one failed.