/**
 * Implementation has been copied from
 * https://github.com/samuraitruong/coingecko-api-v3/blob/main/src/CoinGeckoClient.ts
 * and hugely simplified,
 *
 * because the current released version is hardcoded to only support "ethereum" chain,
 * and that project takes forever to accept PRs.
 *
 * If eventually support for all chains is added, we can simply remove all the private function
 * in this class and use `coingecko-api-v3`
 */
export interface TokenPriceResponse {
    /**
     * ETH contract address same with the input pair
     */
    [contract_address: string]: {
        /**
         * price of coin for this currency
         */
        [currency: string]: number;
    };
}
export declare abstract class CoingeckoApiBaseClient {
    private static readonly API_V3_URL;
    protected getPlatform(chainId: number): string;
    simpleTokenPrice(input: {
        id: string;
        contract_addresses: string;
        vs_currencies: string;
        include_market_cap?: boolean;
        include_24hr_vol?: boolean;
        include_24hr_change?: boolean;
        include_last_updated_at?: boolean;
    }): Promise<TokenPriceResponse>;
    /**
     * Generic function to make request use in internal function
     * @param action
     * @param params
     * @returns
     */
    private makeRequest;
    private withPathParams;
}