## ExtendedInternalSchemaElement interface [​](/content/docs/sdk/core.extendedinternalschemaelement#extendedinternalschemaelement-interface/index.html)

**Signature:**

```typescript
export interface ExtendedInternalSchemaElement extends InternalSchemaElement
```

**Extends:** [InternalSchemaElement](/content/docs/sdk/core.internalschemaelement)

## Properties [​](/content/docs/sdk/core.extendedinternalschemaelement#properties/index.html)

| Property | Modifiers | Type | Description |
| --- | --- | --- | --- |
| [readonly?](/content/docs/sdk/core.extendedinternalschemaelement.readonly) |  | boolean | _(Optional)_ |

- [ExtendedInternalSchemaElement interface](/content/docs/sdk/core.extendedinternalschemaelement#extendedinternalschemaelement-interface/index.html)
- [Properties](/content/docs/sdk/core.extendedinternalschemaelement#properties/index.html)