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

# LanguageType

Restrict to natural-language or programming-language tagged activity. Sourced from a sampled, upsampled dataset, so `total_tokens` is an estimate and is aggregated weekly (the trailing weekly bucket may include traffic past `end_date`). Cannot be combined with `modality`, `context_bucket`, or `category`.

## Example Usage

```go theme={null}
import (
	"github.com/OpenRouterTeam/go-sdk/models/operations"
)

value := operations.LanguageTypeNatural

// Open enum: custom values can be created with a direct type cast
custom := operations.LanguageType("custom_value")
```

## Values

| Name                      | Value       |
| ------------------------- | ----------- |
| `LanguageTypeNatural`     | natural     |
| `LanguageTypeProgramming` | programming |