type Predicate<T> = (item: T) => boolean;
type FindOptions = {
    wrapAround?: boolean;
};
export declare function getFirstElement<T>(array: T[]): T | undefined;
export declare function findFirstElement<T>(array: T[], predicate: Predicate<T>): T | undefined;
export declare function getLastElement<T>(array: T[]): T | undefined;
export declare function findLastElement<T>(array: T[], predicate: Predicate<T>): T | undefined;
export declare function getPreviousElement<T>(array: T[], currentIndex: number, { wrapAround }?: FindOptions): T | undefined;
export declare function findPreviousElement<T>(array: T[], currentIndex: number, predicate: Predicate<T>, { wrapAround }?: FindOptions): T | undefined;
export declare function getNextElement<T>(array: T[], currentIndex: number, { wrapAround }?: FindOptions): T | undefined;
export declare function findNextElement<T>(array: T[], currentIndex: number, predicate: Predicate<T>, { wrapAround }?: FindOptions): T | undefined;
export declare function unique<T>(list: T[], predicate?: (item: T, itemToCompared: T) => boolean): T[];
export declare function includes<T>(list: T[], item: T, predicate?: (item: T, itemToCompared: T) => boolean): boolean;
export declare function hasExactSameValues<T>(listA: T[], listB: T[], predicate?: (item: T, itemToCompared: T) => boolean): boolean;
export {};