> ## 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 ```python theme={null} from openrouter.components import BudgetGuardrailPolicyDetailReference # Open enum: unrecognized values are captured as UnrecognizedStr value: BudgetGuardrailPolicyDetailReference = "legacy_mapping" ``` ## Values This is an open enum. Unrecognized values will not fail type checks. * `"legacy_mapping"` * `"account_default"`