import Log from './log';
import ContractFailedError from './contract-error';
export declare type ContractCondition = (...args: any[]) => boolean;
export declare type ContractPredicate<T> = (element: T) => boolean;
export declare type ContractSettings = {
    shouldFailOnCondition: boolean;
    shouldSkipContractChecks: boolean;
    shouldLogError: boolean;
    defaultLogger: typeof Log;
    defaultContractError: typeof ContractFailedError;
};