/**
 * Converts a string in snake_case format to camelCase format.
 *
 * @param str - The string to be converted.
 * @returns The converted string in camelCase format.
 */
export declare function toCamelCase(str: string): string;
/**
 * Converts a string in camelCase format to snake_case format.
 *
 * @param text - The string to be converted.
 * @returns The converted string in snake_case format.
 */
export declare function toSnakeCase(text: string): string;