export declare namespace ClientErrorUtil {
    function isConnectionFailed(error: Error & {
        code?: any;
        reason?: any;
    }): boolean;
    function isAlreadyKnown(error: Error & {
        code?: any;
        reason?: any;
    }): boolean;
    function IsInsufficientFunds(error: Error): boolean;
    function IsNonceTooLow(error: Error): boolean;
    function IsNonceTooHigh(error: Error): boolean;
}