> Documentation index: https://www.gooddata.ai/docs/gooddata-ui/llms.txt lists every page of these docs as Markdown.

# isDrillDownDefinition()

- Package: [@gooddata/sdk-ui-dashboard](https://www.gooddata.ai/docs/gooddata-ui/latest/api-reference/sdk-ui-dashboard/index.md)
- Kind: function
- Stability: beta
- Source: https://github.com/gooddata/gooddata-ui-sdk/blob/rel/11.64/libs/sdk-ui-dashboard/src/types.ts

> **Beta API.** Mostly stable, but details may change in a minor release, outside SemVer. See [API maturity](https://www.gooddata.ai/docs/gooddata-ui/latest/integrations/platform/api-maturity/index.md).
> 

Type-guard testing whether the provided object is an instance of [IDrillDownDefinition](https://www.gooddata.ai/docs/gooddata-ui/latest/api-reference/sdk-ui-dashboard/sdk-ui-dashboard.idrilldowndefinition/index.md).

**Signature:**

```typescript
export declare function isDrillDownDefinition(obj: unknown): obj is IDrillDownDefinition;
```

## Parameters

| Parameter | Type | Description |
| --- | --- | --- |
| obj | unknown |  |

**Returns:**

obj is [IDrillDownDefinition](https://www.gooddata.ai/docs/gooddata-ui/latest/api-reference/sdk-ui-dashboard/sdk-ui-dashboard.idrilldowndefinition/index.md)