# get_client_info

> **Function** in `langchain_google_vertexai`

📖 [View in docs](https://reference.langchain.com/python/langchain-google-vertexai/_utils/get_client_info)

Returns a `ClientInfo` object with a custom user agent header.

## Signature

```python
get_client_info(
    module: str | None = None,
) -> ClientInfo
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `module` | `str \| None` | No | The module for a custom user agent header. (default: `None`) |

## Returns

`ClientInfo`

`google.api_core.gapic_v1.client_info.ClientInfo`

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[View source on GitHub](https://github.com/langchain-ai/langchain-google/blob/982e4015b249de8b9ba1e787746d8cc1f6d6b790/libs/vertexai/langchain_google_vertexai/_utils.py#L107)