> ## 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.

# isDocument

***

# Function: isDocument()

```ts theme={null}
function isDocument(obj: any): obj is Document;
```

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 Document`