# Libtmux_workspace.Plan.collision_policy

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

- **Module:** Libtmux_workspace
- **Package:** libtmux-workspace
- **Language:** OCaml
- **Kind:** enum
- **Source:** https://github.com/libtmux/libtmux-ocaml/blob/205dfda49742592b479247049d186956e4a4cfe9/workspace/libtmux_workspace.mli#L93
- **Public owner:** Libtmux_workspace
- **Page:** https://libtmux.org/en/ocaml/latest/workspace/reference/libtmux_workspace-plan-collision_policy/

```
type collision_policy =
  | Fail_if_session_exists 
  | Append_new_windows of {
  window_collision: window_collision } 
```

## Members

### Other members

- [`Append_new_windows`](/en/ocaml/latest/workspace/reference/libtmux_workspace-plan-collision_policy-append_new_windows/) (constant)
- [`Fail_if_session_exists`](/en/ocaml/latest/workspace/reference/libtmux_workspace-plan-collision_policy-fail_if_session_exists/) (constant)