import type { StakingPosition, SupportedChain } from "../../types/index.js";
/** Lido staking positions across Ethereum (stETH + wstETH) and Arbitrum (wstETH only). */
export declare function getLidoPositions(wallet: `0x${string}`, chains: SupportedChain[]): Promise<StakingPosition[]>;
/** Fetch current Lido Ethereum APR from DefiLlama yields. Cached 10 minutes. */
export declare function getLidoApr(): Promise<number | undefined>;
/**
 * Rough rewards estimate for Lido — we lack historical balances without an indexer,
 * so we project: rewards ≈ balance × apr × (days / 365).
 */
export declare function estimateLidoRewards(currentBalance: StakingPosition, days: number): {
    amount: string;
    valueUsd?: number;
    note: string;
} | undefined;