import type { ServiceApiProtocol } from './service-api.js';
export declare const UNIT_BILLING_UNITS_V1: readonly ["output_images", "completed_requests", "video_generations", "video_seconds"];
export declare const UNIT_BILLING_MATCH_KEYS_V1: readonly ["model", "size", "quality", "resolution"];
export type UnitBillingUnitV1 = (typeof UNIT_BILLING_UNITS_V1)[number];
export type UnitBillingMatchKeyV1 = (typeof UNIT_BILLING_MATCH_KEYS_V1)[number];
export interface UnitBillingComponentV1 {
    unit: UnitBillingUnitV1;
    priceUsd: number;
    match?: Partial<Record<UnitBillingMatchKeyV1, string>>;
}
export interface UnitBillingModelV1 {
    version: 1;
    components: UnitBillingComponentV1[];
}
export type ServiceUnitBillingModelsV1 = Record<string, Partial<Record<ServiceApiProtocol, UnitBillingModelV1>>>;
export interface UnitBillingUsage {
    units: Partial<Record<UnitBillingUnitV1, number>>;
}
export interface UnitBillingUsageReportV1 {
    version: 1;
    units: Partial<Record<UnitBillingUnitV1, string>>;
}
export interface UnitBillingContext {
    sellerPeerId: string;
    provider: string;
    service: string;
    serviceApiProtocol: ServiceApiProtocol;
    attributes?: Partial<Record<UnitBillingMatchKeyV1, string>>;
    unitLimits?: Partial<Record<UnitBillingUnitV1, number>>;
}
export declare const GENERATED_IMAGE_OUTPUT_UNIT_V1 = "output_images";
export declare const FREE_UNIT_BILLING_MODEL_V1: UnitBillingModelV1;
export declare const UNIT_BILLING_UNIT_SET_V1: Set<string>;
export declare const UNIT_BILLING_MATCH_KEY_SET_V1: Set<string>;
export declare function isUnitBillingUnitV1(value: string): value is UnitBillingUnitV1;
export declare function isUnitBillingMatchKeyV1(value: string): value is UnitBillingMatchKeyV1;
export declare function isValidUnitBillingComponentV1(component: UnitBillingComponentV1): boolean;
export declare function unitUsageToBillingReport(usage: UnitBillingUsage): UnitBillingUsageReportV1;
export declare function validateUnitBillingModelV1(model: UnitBillingModelV1): string[];
export declare function isFreeUnitBillingModel(model: UnitBillingModelV1): boolean;
export declare function evaluateUnitBilling(model: UnitBillingModelV1, context: UnitBillingContext, usage: UnitBillingUsage): bigint;
export declare function validateUnitBillingUsageReportV1(report: UnitBillingUsageReportV1): string[];
export declare function unitUsageFromReport(report: UnitBillingUsageReportV1): UnitBillingUsage;
export declare function validateUnitBillingUsage(model: UnitBillingModelV1, context: UnitBillingContext, report: UnitBillingUsageReportV1, sellerCost: bigint, costToleranceMultiplier: number, observedUsage?: UnitBillingUsage): bigint;
export declare function usdToMicroUsdc(value: number): bigint;
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