/**
 * Split a string into substrings using the specified separator and return them as an array.
 * @param separator A string that identifies character or characters to use in separating the string. If omitted, a single-element array containing the entire string is returned.
 * @param limit A value used to limit the number of elements returned in the array.
 */
export declare function split(separator: RegExp | string, limit?: number): (string: string) => string[];