export declare const ZERO_ADDRESS = "0x0000000000000000000000000000000000000000";
export declare const GASLIMIT_DEFAULT = 1000000;
export declare const MAX_UINT_256 = "115792089237316195423570985008687907853269984665640564039457584007913129639934";
export declare const FEE_HISTORY_NOT_SUPPORTED = "Returned error: Method eth_feeHistory not supported.";