import type { ResolvedModel, TokenUsage, VoiceResult } from "../types.js";
export declare function computeUsageCost(usage: TokenUsage | undefined, resolved: ResolvedModel): number | null;
export declare function aggregateTotalCost(args: {
    voices: VoiceResult[];
    conductorCostUsd?: number | null;
    conductorExecuted: boolean;
}): number | null;
export declare function roundCost(cost: number): number;