/** @internal */
export declare function isNullOrUndefined(value: unknown): value is null | undefined;
/** @monorepo-internal */
export declare function isEmptyNullOrUndefined(value: unknown): value is "" | null | undefined;
/** @monorepo-internal */
export declare function isUuidSet(value: unknown): value is string;
/** @monorepo-internal */
export declare function ensureNotNullOrUndefined<T>(value: T): NonNullable<T>;
