import { Tx } from "../client";
import { BigNumberish } from "ethers";
import { GasOracleResponse, TokenBalanceParam, TransactionHistoryParam } from "./types";
/**
 * SafeGasPrice, ProposeGasPrice And FastGasPrice returned in string-Gwei
 *
 * @see https://etherscan.io/apis#gastracker
 *
 * @param {string} baseUrl The etherscan node url.
 * @param {string} apiKey The etherscan API key. (optional)
 * @returns {GasOracleResponse} LastBlock, SafeGasPrice, ProposeGasPrice, FastGasPrice
 */
export declare const getGasOracle: (baseUrl: string, apiKey?: string) => Promise<GasOracleResponse>;
export declare const getGoerliGasOracle: (baseUrl: string, apiKey?: string) => Promise<string>;
/**
 * Get token balance
 *
 * @see https://etherscan.io/apis#tokens
 *
 * @param {string} baseUrl The etherscan node url.
 * @param {string} address The address.
 * @param {string} assetAddress The token contract address.
 * @param {string} apiKey The etherscan API key. (optional)
 * @returns {BigNumberish} The token balance
 */
export declare const getTokenBalance: ({ baseUrl, address, assetAddress, apiKey, }: TokenBalanceParam & {
    baseUrl: string;
    apiKey?: string;
}) => Promise<BigNumberish>;
/**
 * Get ETH transaction history
 *
 * @see https://etherscan.io/apis#accounts
 *
 * @param {string} baseUrl The etherscan node url.
 * @param {string} address The address.
 * @param {TransactionHistoryParam} params The search options.
 * @param {string} apiKey The etherscan API key. (optional)
 * @returns {ETHTransactionInfo[]} The ETH transaction history
 */
export declare const getETHTransactionHistory: ({ baseUrl, address, page, offset, startblock, endblock, apiKey, }: TransactionHistoryParam & {
    baseUrl: string;
    apiKey?: string;
}) => Promise<Tx[]>;
/**
 * Get token transaction history
 *
 * @see https://etherscan.io/apis#accounts
 *
 * @param {string} baseUrl The etherscan node url.
 * @param {string} address The address.
 * @param {TransactionHistoryParam} params The search options.
 * @param {string} apiKey The etherscan API key. (optional)
 * @returns {Tx[]} The token transaction history
 */
export declare const getTokenTransactionHistory: ({ baseUrl, address, assetAddress, page, offset, startblock, endblock, apiKey, }: TransactionHistoryParam & {
    baseUrl: string;
    apiKey?: string;
}) => Promise<Tx[]>;