import { type ReadCostOptions } from "./ledger.js";
export interface CostBucket {
    inTokens: number;
    outTokens: number;
    totalTokens: number;
    records: number;
}
export interface CostSink extends CostBucket {
    label: string;
}
export interface CostSummary {
    root: string;
    records: number;
    sessions: string[];
    totals: CostBucket;
    byEvent: Record<string, CostBucket>;
    byTool: Record<string, CostBucket>;
    byModel: Record<string, CostBucket>;
    topSinks: CostSink[];
}
export declare function summarizeCost(cwd: string, options?: ReadCostOptions): CostSummary;
export declare function formatCostSummary(summary: CostSummary): string;