import { IConvertedColor } from '@urpflanze/color';
/**
 * Return time (from 0 to duration) in milliseconds
 *
 * @category Utilities
 * @export
 * @param {number} time Current time
 * @param {number} duration Clock duration
 * @param {(number | boolean)} [loop=true]
 * @param {('normal' | 'reverse' | 'alternate')} [direction='alternate']
 * @param {number} [delay=0]
 * @param {number} [afterDelay=0]
 * @return {*}  {number} Between 0 and duration
 */
export declare function clock(time: number, duration: number, loop?: number | boolean, direction?: 'normal' | 'reverse' | 'alternate', delay?: number, afterDelay?: number): number;
/**
 * Return offset between 0 and 1 from current time based on duration and other parameters
 *
 * @category Utilities
 * @export
 * @param {number} time
 * @param {number} duration
 * @param {(number | boolean)} [loop=true]
 * @param {('normal' | 'reverse' | 'alternate')} [direction='alternate']
 * @param {number} [delay=0]
 * @param {number} [afterDelay=0]
 * @return {*}  {number}
 */
export declare function clockOffset(time: number, duration: number, loop?: number | boolean, direction?: 'normal' | 'reverse' | 'alternate', delay?: number, afterDelay?: number): number;
/**
 * Return sin of period 'durate' in time 'time'
 *
 * @category Utilities
 * @export
 * @param {number} time
 * @param {number} durate
 * @param {number} phase
 * @param {boolean} [normalize=false]
 * @return {*}  {number}
 */
export declare function sinp(time: number, durate: number, phase?: number, normalize?: boolean): number;
/**
 * Return cos of period 'durate' in time 'time'
 *
 * @category Utilities
 * @export
 * @param {number} time
 * @param {number} durate
 * @param {number} phase
 * @param {boolean} [normalize=false]
 * @return {*}  {number}
 */
export declare function cosp(time: number, durate: number, phase?: number, normalize?: boolean): number;
/**
 *
 * @category Utilities
 * @export
 * @param {IConvertedColor} start
 * @param {IConvertedColor} end
 * @param {number} offset
 * @return {*}  {string}
 */
export declare function interpolateColorRGB(start: IConvertedColor, end: IConvertedColor, offset: number): string;
/**
 *
 * @category Utilities
 * @export
 * @param {IConvertedColor} start
 * @param {IConvertedColor} end
 * @param {number} offset
 * @return {*}  {string}
 */
export declare function interpolateColorHSL(start: IConvertedColor, end: IConvertedColor, offset: number): string;
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