[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) › InferParentError

```ts
type InferParentError<A> =
  A extends Type<any, any, any, any, any, infer ParentError>
    ? ParentError
    : never;
```

Defined in: [packages/common/src/Type.ts:569](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Type.ts#L569)

Extracts the parent error type from a [Type](https://evolu.dev/docs/api-reference/common/Type/interfaces/Type).