import type { GovernanceServiceCredential } from './capability-grant.js';
import type { GovernanceServiceResponse } from './project-service.js';
export declare const GOVERNANCE_MANAGEMENT_RECEIPT_TTL_MS = 30000;
interface GovernanceManagementReceiptCacheOptions {
    readonly now?: (() => number) | undefined;
    readonly ttlMs?: number | undefined;
    readonly maxEntries?: number | undefined;
}
type GovernanceManagementReceiptLookup = {
    readonly kind: 'miss';
} | {
    readonly kind: 'in_progress';
} | {
    readonly kind: 'conflict';
    readonly allowAfterRotation: boolean;
} | {
    readonly kind: 'replay';
    readonly response: GovernanceServiceResponse;
    readonly allowAfterRotation: boolean;
};
interface GovernanceManagementReceiptReservation {
    readonly key: string;
    readonly fingerprint: string;
    readonly requestId: string;
}
export declare class GovernanceManagementReceiptCache {
    private readonly now;
    private readonly ttlMs;
    private readonly maxEntries;
    private readonly records;
    private readonly reservations;
    constructor(options?: GovernanceManagementReceiptCacheOptions);
    lookup(input: unknown, credential: GovernanceServiceCredential): GovernanceManagementReceiptLookup;
    reserve(options: {
        readonly input: unknown;
        readonly credential: GovernanceServiceCredential;
        /**
         * Raw wire payload to fingerprint for replay-conflict detection. Must be
         * the same form that subsequent `lookup` calls see; defaults to `input`
         * when the caller has no separate wire form. Passing the raw form (and
         * not the decoder-normalized form) keeps the contract immune to a future
         * decoder that adds content-preserving normalization, which would
         * otherwise turn every legitimate retry into a misleading
         * "requestId already used" conflict.
         */
        readonly wireInput?: unknown;
    }): GovernanceManagementReceiptReservation | null;
    commit(reservation: GovernanceManagementReceiptReservation, response: GovernanceServiceResponse, allowAfterRotation?: boolean): void;
    release(reservation: GovernanceManagementReceiptReservation): void;
    clear(): void;
    private pruneExpired;
}
export {};
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