export declare class CryptoService {
    private client;
    constructor(token: string);
    history(request: HistoryRequest): Promise<HistoryResponse>;
    news(request: NewsRequest): Promise<NewsResponse>;
    price(request: PriceRequest): Promise<PriceResponse>;
    quote(request: QuoteRequest): Promise<QuoteResponse>;
    symbols(request: SymbolsRequest): Promise<SymbolsResponse>;
}
export interface Article {
    date?: string;
    description?: string;
    source?: string;
    title?: string;
    url?: string;
}
export interface HistoryRequest {
    symbol?: string;
}
export interface HistoryResponse {
    close?: number;
    date?: string;
    high?: number;
    low?: number;
    open?: number;
    symbol?: string;
    volume?: number;
}
export interface NewsRequest {
    symbol?: string;
}
export interface NewsResponse {
    articles?: Article[];
    symbol?: string;
}
export interface PriceRequest {
    symbol?: string;
}
export interface PriceResponse {
    price?: number;
    symbol?: string;
}
export interface QuoteRequest {
    symbol?: string;
}
export interface QuoteResponse {
    ask_price?: number;
    ask_size?: number;
    bid_price?: number;
    bid_size?: number;
    symbol?: string;
    timestamp?: string;
}
export interface Symbol {
    name?: string;
    symbol?: string;
}
export interface SymbolsRequest {
}
export interface SymbolsResponse {
    symbols?: Symbol[];
}