import { ValueWrapper } from './value-wrapper';
export declare class DefaultValueWrapper<T> implements ValueWrapper<T> {
    private _value;
    private _exists;
    private _defaultValue;
    protected constructor(value: T, exists?: boolean, defaultValue?: T);
    protected set value(newValue: T);
    protected get value(): T;
    protected get defaultValue(): T;
    isExists(): boolean;
    ensureExists(message?: string): this;
    ensureGreaterThan(other: T, message?: string): this;
    ensureGreaterThanOrEqual(other: T, message?: string): this;
    ensureLowerThan(other: T, message?: string): this;
    ensureLowerThanOrEqual(other: T, message?: string): this;
    ensureEqualTo(other: T, message?: string): this;
    ensureNotEqualTo(other: T, message?: string): this;
    ensureNotNull(message?: string): this;
    ensureIn(list: T[], message?: string): this;
    ensureNotIn(list: T[], message?: string): this;
    ensureFit(predicate: (value: T) => boolean, message?: string): this;
    eitherExists(or: T): this;
    eitherGreaterThan(other: T, or?: T): this;
    eitherGreaterThanOrEqual(other: T, or?: T): this;
    eitherLowerThan(other: T, or?: T): this;
    eitherLowerThanOrEqual(other: T, or?: T): this;
    eitherEqualTo(other: T, or: T): this;
    eitherNotEqualTo(other: T, or: T): this;
    eitherNotNull(or: T): this;
    eitherIn(list: T[], or: T): this;
    eitherNotIn(list: T[], or: T): this;
    eitherFit(predicate: (value: T) => boolean, or: T): this;
    get(): T;
    getOrDefault(defaultValue?: T): T;
    getOrThrow(message?: string): T;
}