# constants.DefaultOptionScope

- **Module:** constants
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-ts/blob/46cccfef2a546de55ce8b308249b8c76339089a0/packages/libtmux/src/constants.ts#L72
- **Page:** https://libtmux.org/en/ts/latest/reference/constants-defaultoptionscope/

```ts
type DefaultOptionScope = { readonly [defaultOptionScopeBrand]: "default-option-scope" }
```

"Whatever scope tmux would use", as a value rather than an absent argument.

Branded so it cannot be confused with an [`OptionScope`](/en/ts/latest/reference/constants-optionscope/): passing this
means the call sends no scope flag, which is not the same as sending the
session one.