import { TxOptions } from '@ethereumjs/tx';
import { EthereumActionContract, EthereumActionHelperInput, EthereumRawTransactionAction, EthereumTransactionAction, EthereumSignatureNative } from './models';
export type ActionChainOptions = {
    chain: string;
    hardfork: string;
};
/** Helper class to ensure transaction actions properties are set correctly */
export declare class EthereumActionHelper {
    private _nonce;
    private _gasLimit;
    private _gasPrice;
    private _data;
    private _to;
    private _value;
    private _from;
    private _contract;
    private _v;
    private _r;
    private _s;
    private _ethereumJsChainOptions;
    /** Creates a new Action from 'human-readable' transfer or contract info
     *  OR from 'raw' data property
     *  Allows access to human-readable properties (method, parameters) or raw data (hex) */
    constructor(actionInput: EthereumActionHelperInput, ethereumJsChainOptions: TxOptions);
    /** apply rules for imput params, set class private properties, throw if violation */
    private assertAndValidateEthereumActionInput;
    /** set gasLimit - value should be a decimal string in units of gas e.g. '21000' */
    set gasLimit(value: string);
    /** set gasPrice - value should be a string in units of WEI or a Hex value e.g. '123' */
    /** note that the unit if WEI has no decimal places so you should never be providing 1.1 etc.  */
    /** since WEI is the smallest unit you should expect to be proving what looks like a big number 1100000000 (This is 1.1 Gwei converted to WEI - https://eth-converter.com/) .  */
    set gasPrice(value: string);
    /** set nonce - value is a string or Buffer */
    set nonce(value: string);
    /** set signature */
    set signature(signature: EthereumSignatureNative);
    /** update a single property in this action */
    private updateActionProperty;
    /** Checks is data value is empty or implying 0 */
    get hasData(): boolean;
    /** Action properties (encoded as hex string for most fields)
     *  Returns null for any 'empty' Eth values e.g. (0x00...00) */
    get action(): EthereumTransactionAction;
    /** Action properties in raw form (encoded as Buffer) */
    get raw(): EthereumRawTransactionAction;
    /** Action properties including raw data */
    get contract(): EthereumActionContract;
}