/**
 * Formats a value by inserting a separator character between groups of characters.
 *
 * The character groups are defined by the `charGroupings` parameter. The default value is `[4]`, which will group the characters into groups of 4.
 *
 * For example, `makeReadable('12345678901', [1, 3, 3, 4], '-')` will return `'1-234-567-8901'`.
 */
declare function makeReadable(value: string | number, charGroupings?: number[], separator?: string): string;

export { makeReadable };