> ## Documentation Index
> Fetch the complete documentation index at: https://docs.galileo.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# isRetrieverSpanAllowedOutputType

***

# Function: isRetrieverSpanAllowedOutputType()

```ts theme={null}
function isRetrieverSpanAllowedOutputType(
  obj: any,
): obj is RetrieverSpanAllowedOutputType;
```

Defined in: [src/types/logging/step.types.ts](https://github.com/rungalileo/galileo-js/blob/main/src/types/logging/step.types.ts)

## Parameters

### obj

`any`

## Returns

`obj is RetrieverSpanAllowedOutputType`