export declare const join: <TLeft, TRight, TKey, TResult>(leftCollection: Iterable<TLeft>, rightCollection: Iterable<TRight>, getLeftKey: (l: TLeft) => TKey, getRightKey: (r: TRight) => TKey, getResultItem: (l: TLeft, r: TRight) => TResult) => TResult[];
export declare const leftJoin: <TLeft, TRight, TKey, TResult>(leftCollection: Iterable<TLeft>, rightCollection: Iterable<TRight>, getLeftKey: (l: TLeft) => TKey, getRightKey: (r: TRight) => TKey, getResultItem: (l: TLeft, r: TRight | undefined) => TResult) => TResult[];
export declare const fullJoin: <TLeft, TRight, TKey, TResult>(leftCollection: Iterable<TLeft>, rightCollection: Iterable<TRight>, getLeftKey: (l: TLeft) => TKey, getRightKey: (r: TRight) => TKey, getResultItem: (l: TLeft | undefined, r: TRight | undefined) => TResult) => TResult[];