import { Models } from '@open-rights-exchange/chain-js';
import { EthUnit } from './models';
export declare const TRANSACTION_ENCODING = "utf8";
export declare const DEFAULT_TRANSACTION_EXPIRY_IN_SECONDS = 30;
export declare const DEFAULT_TRANSACTION_BLOCKS_BEHIND_REF_BLOCK = 3;
export declare const CHAIN_BLOCK_FREQUENCY = 0.5;
export declare const ACCOUNT_NAME_MAX_LENGTH = 12;
export declare const DEFAULT_BLOCKS_TO_CHECK = 20;
export declare const DEFAULT_CHECK_INTERVAL = 500;
export declare const DEFAULT_GET_BLOCK_ATTEMPTS = 10;
export declare const DEFAULT_ETH_UNIT = EthUnit.Wei;
export declare const ZERO_HEX = "0x00";
export declare const ZERO_ADDRESS: Models.ChainEntityNameBrand;
export declare const EMPTY_DATA = "0x";
export declare const SENTINEL_ADDRESS: Models.ChainEntityNameBrand;
export declare const EMPTY_HEX = "0x";
export declare const NATIVE_CHAIN_TOKEN_SYMBOL = "ETH";
/** The chain address of the default token/currency contract (if any) */
export declare const NATIVE_CHAIN_TOKEN_ADDRESS: any;
export declare const NATIVE_CHAIN_TOKEN_PRECISION = 18;
export declare const TRANSACTION_FEE_PRIORITY_MULTIPLIERS: Models.TransactionFeePriorityMultipliers;
/** Transaction expiration constraints */
export declare const ETHEREUM_TRANSACTION_EXPIRATION_OPTIONS: Models.TransactionExpirationOptions;