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

```ts
const Unknown: createRootType<"Unknown", unknown, never>(
  "Unknown",
  ok,
  identity,
);
```

Defined in: [packages/common/src/Type.ts:2774](https://github.com/evoluhq/evolu/blob/037c390af081e9944d616ff298a729515c5c5ab7/packages/common/src/Type.ts#L2774)

An infallible [Type](https://evolu.dev/docs/api-reference/common/Type/interfaces/Type) accepting every value.