/**
 * Represents a function that interpolates between two values.
 *
 * @typeParam T - The type of the values being interpolated.
 * @param start - The starting value.
 * @param end - The ending value.
 * @param delta - The interpolation factor between 0 and 1.
 * @returns The interpolated value.
 * @public
 */
export type Interpolate<T> = (start: T, end: T, delta: number) => T;
/**
 * Interpolates a number between a start and end value based on a delta.
 *
 * @param start - The starting value.
 * @param end - The ending value.
 * @param delta - The delta value between 0 and 1.
 * @returns The interpolated number.
 * @public
 */
export declare const interpolateNumber: Interpolate<number>;
/**
 * Interpolates between two strings based on a delta value.
 *
 * @param start - The starting string.
 * @param end - The ending string.
 * @param delta - The delta value between 0 and 1.
 * @returns The interpolated string.
 * @public
 */
export declare const interpolateString: Interpolate<string>;
/**
 * Interpolates between two dates based on a delta value.
 *
 * @param start - The starting date.
 * @param end - The ending date.
 * @param delta - The delta value between 0 and 1.
 * @returns The interpolated date.
 * @public
 */
export declare const interpolateDate: Interpolate<Date>;
/**
 * A fake interpolate function that always returns the end value.
 *
 * @public
 */
export declare const endInterpolate: <T>(_start: T, end: T) => T;
/**
 * Returns an interpolation function based on the type of the value.
 *
 * @typeParam T - The type of the value.
 * @param value - The value to be interpolated.
 * @returns An interpolation function that takes a start value, an end value, and a delta, and returns an interpolated value.
 * @public
 */
export declare const guessInterpolate: <T>(value: T) => Interpolate<T>;