> ## 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.

# BudgetGuardrailPolicyDetailReference

`legacy_mapping` when the policy is synced from a v1 guardrail, `account_default` when it is an account-wide default, otherwise `null`

## Example Usage

```typescript theme={null}
import { BudgetGuardrailPolicyDetailReference } from "@openrouter/sdk/models";

let value: BudgetGuardrailPolicyDetailReference = "legacy_mapping";

// Open enum: unrecognized values are captured as Unrecognized<string>
```

## Values

```typescript theme={null}
"legacy_mapping" | "account_default" | Unrecognized<string>
```