import { AssembleGasFreeTransactionParams, GasFree, GasFreeParameter } from './GasFree';
import type { TronGasFreeTypedData, TronAddress, GasFreeTypedDataMessage } from './types';
export declare class TronGasFree extends GasFree {
    constructor(gasFreeParameter: GasFreeParameter);
    protected checkIsValidAddress(address: string | undefined): boolean;
    checkIsValidGasFreeTypedDataParams({ message }: {
        message: GasFreeTypedDataMessage;
    }): boolean;
    generateGasFreeAddress(userAddress: string): TronAddress;
    protected getCreate2PrefixByte(): string;
    assembleGasFreeTransactionJson(parameters: AssembleGasFreeTransactionParams): TronGasFreeTypedData;
}