export declare const passed: (probabilityOfFailure: number | undefined) => {
    random: number | undefined;
    passed: boolean;
};
export declare const largeString: (sizeInMb: number) => string;
export declare const randomBetween: (min: number, max: number) => number;
export declare const checkType: <T, K>(obj?: T | undefined, defaultValue?: T) => T;
export declare const maybeWithDefault: <T>(obj?: T | undefined) => <T_1>(defaultValue: T_1) => T | T_1;
export declare const removeRandomArray: (data: any[]) => any[];
export declare const removeRandomProperty: (data: any) => any;