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

# VastAI.label_instance

Label an instance.

## Signature

```python theme={null}
VastAI.label_instance(id: int, label: str) -> str
```

## Parameters

<ParamField path="id" type="int" required>
  id
</ParamField>

<ParamField path="label" type="str" required>
  label
</ParamField>

## Returns

`str`, Result from the API call.

## Example

```python theme={null}
from vastai import VastAI

client = VastAI(api_key="YOUR_API_KEY")
result = client.label_instance(id=12345, label="...")
print(result)
```