prompt static method
Implementation
static String? prompt(String message, {String? defaultVal}) {
final def = defaultVal != null ? ' $_gy(default: $defaultVal)$_r' : '';
stdout.write('\n $_cy\$$_r $_b$message$_r$def $_cy›$_r ');
final input = stdin.readLineSync()?.trim();
if ((input == null || input.isEmpty) && defaultVal != null)
return defaultVal;
return input;
}