import type { AuthorityDelegationV1, BudgetOperationResult } from './types.js';
/**
 * Reference linearizable ledger for one JavaScript process. Each mutation is a
 * single synchronous critical section. Distributed deployments must replace it
 * with a store providing the same all-ancestors atomicity and idempotency.
 */
export declare class InMemoryAuthorityBudgetLedger {
    private readonly counters;
    private readonly reservations;
    reserve(verifiedChain: readonly AuthorityDelegationV1[], actionRef: string, unit: string, amountString: string): BudgetOperationResult;
    markDispatched(actionRef: string): BudgetOperationResult;
    commit(actionRef: string): BudgetOperationResult;
    /** Cancellation is allowed only before dispatch. */
    cancel(actionRef: string): BudgetOperationResult;
    counter(delegationId: string): {
        reserved: string;
        committed: string;
    };
}
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