import type { UsageMetrics } from './usage-aggregator.js';
type HubStageTopEntry = {
    stage: string;
    totalMs: number;
    count?: number;
    avgMs?: number;
    maxMs?: number;
};
export declare function logUsageSummary(requestId: string, info: {
    providerKey?: string;
    model?: string;
    routeName?: string;
    poolId?: string;
    finishReason?: string;
    usage?: UsageMetrics;
    externalLatencyMs?: number;
    trafficWaitMs?: number;
    clientInjectWaitMs?: number;
    sseDecodeMs?: number;
    codecDecodeMs?: number;
    providerDecodeTag?: string;
    providerAttemptCount?: number;
    retryCount?: number;
    hubStageTop?: HubStageTopEntry[];
    latencyMs: number;
    timingRequestIds?: string[];
    sessionId?: unknown;
    conversationId?: unknown;
    projectPath?: unknown;
}, options?: {
    terminalTiming?: boolean;
}): void;
export {};