/**
 * Converts a string to snake_case
 *
 * @example
 * snakeCase("camelCase");
 * => "camel_case"
 *
 * @param a - A string
 * @param separator - An optional separator to use instead of underscore
 */
export declare const snakeCase: (a: string, separator?: string) => string;
export { snakeCase as toSnakeCase };
//# sourceMappingURL=snakeCase.d.ts.map