export declare const removeDuplicates: <T>(arr: T[]) => T[];
export declare const flattenArray: <T>(arr: T[][]) => T[];
export declare const filterArray: <T>(arr: T[], conditionFn: (value: T) => boolean) => T[];
export declare const transformArray: <T, U>(arr: T[], transformFn: (value: T) => U) => U[];
export declare const capitalizeEach: (array: string[]) => string[];
export declare const implode: <T>(arr: T[], delimiter?: string) => string;