export default class EmptyOptionalTest {
    private readonly emptyOptional;
    returnsInstanceOfOptional(): void;
    returnsTrueEmptinessIfEmpty(): void;
    returnsFalsePresenceIfEmpty(): void;
    throwsExceptionForGetIfEmpty(): void;
    throwsExceptionForElseThrowIfEmpty(): void;
    returnsEmptyIfValueIsNull(): void;
    returnsEmptyIfValueIsUndefined(): void;
    doesNothing(): void;
    returnsCorrectOtherValueForOrElse(): void;
    performsGivenEmptyActionIfEmpty(): void;
}