import { Contract, Signer } from "ethers-6";
import { IChainInfo, ITransferExt } from "../types";
export declare const CrossAddressTypes: {
    "0x01": string;
    "0x02": string;
    "0x03": string;
};
export declare class CrossAddress {
    private contractAddress;
    private provider;
    private signer;
    private networkId;
    private providerNetworkId?;
    constructor(signer: Signer, fromChainInfo: IChainInfo, contractAddress?: string);
    checkNetworkId(): Promise<void>;
    /**
     * @param {Contract} contractErc20
     */
    getAllowance(contractErc20: Contract, contractAddress?: string): Promise<BigInt>;
    approveERC20(tokenAddress: string, amount: BigInt, contractAddress?: string): Promise<void>;
    transfer(to: string, amount: string, ext: ITransferExt): Promise<{
        hash: string;
    }>;
    /**
     *
     * @param {string} tokenAddress 0x...
     * @param {string} to
     * @param {ethers.BigNumber} amount
     * @param {{type: string, value: string} | undefined} ext
     * @return {Promise<{hash: string}>}
     */
    transferERC20(tokenAddress: string, to: string, amount: BigInt, ext?: ITransferExt): Promise<{
        hash: string;
    }>;
    contractApprove(tokenAddress: string, amount: BigInt, contractAddress?: string): Promise<undefined>;
    static encodeExt(ext?: ITransferExt): string;
    static fix0xPadStartAddress(address: string, length: number): string;
    /**
     *
     * @param {string} hex
     * @returns {{type: string, value: string} | undefined}
     */
    static decodeExt(hex: string): {
        type: string;
        value: string;
    } | undefined;
    /**
     * @param {string} input 0x...
     */
    static parseTransferInput(input: string): {
        to: any;
        ext: {
            type: string;
            value: string;
        } | undefined;
    };
}
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