import type { ClosureSignals } from './closure-emitter.js';
import type { ResponseMetadata } from '../types.js';
interface TokenCounters {
    input: number;
    output: number;
    cacheRead: number;
    cacheCreation: number;
}
export interface AccountingSnapshot {
    sessionRunningCostUsd: number;
    sessionRunningTokens: Readonly<TokenCounters>;
    subagentCompletedCount: number;
    subagentRunningTokens: Readonly<TokenCounters>;
    subagentRunningCostUsd: number;
}
export declare class AccountingAccumulator {
    private sessionRunningCostUsd;
    private sessionRunningTokens;
    private lastStopReason;
    private maxTurnsHit;
    private hookBlocked;
    private sawProviderError;
    readonly sessionStartedAt: number;
    private subagentCompletedCount;
    private subagentRunningTokens;
    private subagentRunningCostUsd;
    reset(): void;
    recordTurnMetadata(m: ResponseMetadata): void;
    markHookBlocked(): void;
    markMaxTurnsHit(): void;
    markProviderError(): void;
    clearProviderError(): void;
    recordSubagentCompletion(usage?: {
        inputTokens?: number;
        outputTokens?: number;
        cacheReadTokens?: number;
        cacheCreationTokens?: number;
    }, costUsd?: number): void;
    closureSignals(signal: AbortSignal, dispatchReason: string): ClosureSignals;
    snapshot(): AccountingSnapshot;
}
export {};