[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) › TupleExcessPropertyIssue

Defined in: [packages/common/src/Type.ts:9171](https://github.com/evoluhq/evolu/blob/f0109fb501a593010e858e39248dde1200eeb2d7/packages/common/src/Type.ts#L9171)

An undeclared own property in a [tuple](https://evolu.dev/docs/api-reference/common/Type/functions/tuple).

## Properties

<a id="key"></a>

### key

```ts
readonly key: string | symbol;
```

Defined in: [packages/common/src/Type.ts:9173](https://github.com/evoluhq/evolu/blob/f0109fb501a593010e858e39248dde1200eeb2d7/packages/common/src/Type.ts#L9173)

---

<a id="kind"></a>

### kind

```ts
readonly kind: "ExcessProperty";
```

Defined in: [packages/common/src/Type.ts:9172](https://github.com/evoluhq/evolu/blob/f0109fb501a593010e858e39248dde1200eeb2d7/packages/common/src/Type.ts#L9172)