/** Input ease types names */
export type EaseType = 'lin' | 'expo' | 'quad' | 'cubic' | 'step';
/** Ease function container */
export type EaseFunction<T> = (zoom: number, start: number, end: number, startValue: T, endValue: T) => T;
/**
 * Convert a string to a function that will return an interpolation
 * between two values or colors.
 * @param easeType - ease type
 * @param base - base value
 * @returns an easing function
 */
export default function getEasingFunction<T>(easeType?: EaseType, base?: number): EaseFunction<T>;