interface MergeOptions {
    /** Whether to keep the class-deletor in the target array. */
    keepClassDeletor?: boolean;
    /** The minimum string length. Default is 2.
     */
    minStringLength?: number;
}
/** Returns an array of merged values from source to target.
 *
 * The first argument is the target and the rest are source arrays.
 * - Replace target values that partially or fully match source value(s).
 * - Adds to target, source value(s) that does not end by the '-' character.
 * @param values The target and source values to resolve.
 * @param options The options for merging.
 * */
declare function merge(...arg: ClassNameValue[] | [...ClassNameValue[], MergeOptions]): string;
export type ClassNameValue = string | undefined | null;
/** Transfroms string value to an array then returns it.
 * Returns an empty array if value is undefined. */
export declare function stringToArray(value: unknown, separator?: string): string[];
/** Returns a string of merged class names from right to left. */
export declare const classNameMerge: typeof merge;
export {};