import { type ModelRegistry } from "@earendil-works/pi-coding-agent";
import type { Api, AssistantMessage, Model, Usage } from "@earendil-works/pi-ai";
import { type UsageAccount, type UsageLedger } from "./ledger-schema.ts";
import type { CodexUsageSnapshot } from "./payload.ts";
export declare function usageLedgerPath(): string;
export declare function usageAccountKey(accountId: string): string;
export declare function readUsageLedger(path?: string): UsageLedger;
export declare function usageRecordingError(): string | undefined;
export declare function updateUsageLedger(key: string, at: number, update: (account: UsageAccount, ledger: UsageLedger) => void, path?: string): Promise<void>;
export declare function recordCodexSpend(accountId: string, model: Model<Api>, usage: Usage, at?: number): Promise<void>;
export declare function recordCodexQuota(snapshot: CodexUsageSnapshot, at?: number): Promise<void>;
export declare function recordCodexProxyMessage(message: AssistantMessage, registry: ModelRegistry): Promise<void>;
export declare function recordCodexManualReset(key: string): Promise<void>;