/**
 * Options used to configure Millify.
 */
export interface MillifyOptions {
    /**
     * The number of significant figures.
     */
    precision: number;
    /**
     * The active browser or server location. A string with a BCP 47 language
     * tag, or an array of such strings, e.g. "en-US".
     */
    locales?: string | string[];
    /**
     * Convert units to lower case.
     */
    lowercase: boolean;
    /**
     * Add a space between the number and the unit.
     */
    space: boolean;
    /**
     * A list of units to use.
     */
    units: string[];
}
/**
 * Default options for Millify.
 */
export declare const defaultOptions: MillifyOptions;