export interface PriceData {
    symbol: string;
    price: number;
    timestamp: Date;
}
export interface AssetPrice {
    base: string;
    quote: string;
    price: number;
    timestamp: Date;
}
export interface PriceProvider {
    fetchPrice(symbol: string, currency?: string): Promise<PriceData>;
    fetchMultiplePrices(symbols: string[], currency?: string): Promise<PriceData[]>;
}
export type SupportedCurrency = 'USD' | 'BTC' | 'ETH';
export interface ConversionOptions {
    from: string;
    to: string;
    amount?: number;
}