/**
 * Twig On-Chain Revenue Measurer
 * Tracks x402 payment volume for a wallet address.
 * Used to measure revenue before/after Twig optimization.
 */
export interface RevenueSnapshot {
    wallet: string;
    chain: 'base';
    periodDays: number;
    startBlock: number;
    endBlock: number;
    transactions: number;
    uniquePayers: number;
    totalUSDC: string;
    capturedAt: string;
}
export declare function measureRevenue(wallet: string, periodDays?: number): Promise<RevenueSnapshot>;