/**
 * Converts a string to snake case.
 *
 * @since 1.0.0
 *
 * @param {string} [str=''] - The string to convert.
 *
 * @returns {string} - The snake case version of the input string.
 *
 * @example
 * snakeCase('some text'); // 'some_text'
 * snakeCase('some-mixed_string With spaces_underscores-and-hyphens'); // 'some_mixed_string_with_spaces_underscores_and_hyphens'
 * snakeCase('AllThe-small Things'); // 'all_the_small_things'
 *
 */
declare const snakeCase: (str?: string) => string;
export default snakeCase;