/*
 * SPDX-FileCopyrightText: syuilo and misskey-project
 * SPDX-License-Identifier: AGPL-3.0-only
 */

export type Predicate<T> = (a: T) => boolean;

export type Relation<T, U> = (a: T, b: U) => boolean;

export type EndoRelation<T> = Relation<T, T>;