import { Wallet } from './Wallet';
import Web3 from 'web3';
interface ConnectInfo {
    chainId: string;
}
interface ProviderRpcError extends Error {
    message: string;
    code: number;
    data?: unknown;
}
export declare class WalletEVMMetaMask extends Wallet {
    w3: Web3;
    chains: Array<any>;
    constructor(obj?: any, chainId?: string);
    createChainArray(achains: Array<any>): void;
    handleAccountChange(accounts: any): void;
    handleChainChange(chainId: string): void;
    handleConnect(connectInfo: ConnectInfo): void;
    handleDisconnect(error: ProviderRpcError): void;
    getAlreadyConnected(): Promise<void>;
    connect(): Promise<boolean>;
    disconnect(): Promise<void>;
    signCustom(nonce: string, message: string): Promise<string>;
    signVerify(address: string, message: string, nonce: string, signature: string): Promise<boolean>;
    getPrivateBalance(): Promise<number>;
    getBaseSymbol(): string;
    isTestNet(): boolean;
    /**
     * call contract
     * @param contract_name
     * @param function_name
     * @param params
     * @returns
     */
    callContract(contract_name: string, function_name: string, params: {
        [id: string]: any;
    }): Promise<any>;
    approve(contract_address: string, amount: number): Promise<number>;
    /**
     *
     * @param account_address
     * @param contract_address
     * @param decimals
     * @returns
     */
    getAllowance(account_address: string, contract_address: string, decimals: number): Promise<number>;
    /**
     *
     * @param contract_address
     * @returns
     */
    getPrivateContract(contract_address: string): Promise<any>;
    /**
     *
     * @param amount
     * @param decimals
     * @returns
     */
    getAmount(amount: number, decimals?: number): number;
    /**
     *
     * @param contract_address
     * @param event_name
     * @param handle_name
     */
    contractOn(contract_address: string, event_name: string, handle_name: () => void): void;
    /**
     *
     * @param contract_address
     * @param event_name
     * @param handle_name
     */
    contractOff(contract_address: string, event_name: string, handle_name: () => void): void;
}
export {};