import { WalletProvider, Transaction } from '../../types';
declare class ERC20 implements WalletProvider {
    walletType: string;
    private wallet;
    private mnemonic;
    constructor();
    connect(mnemonic?: string): Promise<void>;
    saveMnemonic(mnemonic: string): void;
    checkWallet(): boolean;
    generateMnemonic(): Promise<any>;
    disconnect(): Promise<void>;
    getAddress(): Promise<string>;
    getBalance(address: string): Promise<string>;
    sendTransaction(tx: Transaction): Promise<string>;
    signMessage(message: string): Promise<string>;
    getNetwork(): Promise<any>;
    switchNetwork(chainId: string): Promise<any>;
    getChainId(): Promise<number>;
    getTransactionCount(address: string): Promise<number>;
    signTransaction(tx: Transaction): Promise<string>;
    estimateGas(tx: Transaction): Promise<string>;
    getGasPrice(): Promise<any>;
    on(event: string, callback: (result: any) => void): Promise<void>;
    removeListener(event: string, callback: (result: any) => void): Promise<void>;
}
export { ERC20 };