export declare class NamedSessionBudget {
    #private;
    constructor(path: string, scope: string, maximumCents: number);
    status(): {
        maximumCents: number;
        reservedCents: number;
        actualCents: null;
    };
    reserve(requestId: string, cents: number): boolean;
    recoverInterruptedWork(): void;
    beginWork(requestId: string, payloadHash: string): void;
    finishWork(requestId: string, state: 'completed' | 'failed', payloadHash: string): void;
    lastWork(): {
        workId: import("node:sqlite").SQLOutputValue | undefined;
        state: import("node:sqlite").SQLOutputValue | undefined;
        receiptHash: import("node:sqlite").SQLOutputValue | undefined;
        updatedAt: import("node:sqlite").SQLOutputValue | undefined;
    } | null;
    close(): void;
}
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