[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Task](https://evolu.dev/docs/api-reference/common/Task) › createMutexRef

```ts
function createMutexRef<T>(initialValue: T): MutexRef<T>;
```

Defined in: [packages/common/src/Task.ts:2867](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Task.ts#L2867)

Creates a [MutexRef](https://evolu.dev/docs/api-reference/common/Task/interfaces/MutexRef) with the given initial immutable value.