/**
 * @license
 * Copyright The Closure Library Authors.
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * @fileoverview Easing functions for animations.
 */
/**
 * Ease in - Start slow and speed up.
 * @param {number} t Input between 0 and 1.
 * @return {number} Output between 0 and 1.
 */
export function easeIn(t: number): number;
/**
 * Ease out - Start fastest and slows to a stop.
 * @param {number} t Input between 0 and 1.
 * @return {number} Output between 0 and 1.
 */
export function easeOut(t: number): number;
/**
 * Ease out long - Start fastest and slows to a stop with a long ease.
 * @param {number} t Input between 0 and 1.
 * @return {number} Output between 0 and 1.
 */
export function easeOutLong(t: number): number;
/**
 * Ease in and out - Start slow, speed up, then slow down.
 * @param {number} t Input between 0 and 1.
 * @return {number} Output between 0 and 1.
 */
export function inAndOut(t: number): number;