contains method
Implementation
Contract contains(String? val, String comparer, String key, String message) {
val ??= '';
if (val.contains(comparer) == false) {
addNotificationByKeyAndMessage(key, message);
}
return this;
}
Contract contains(String? val, String comparer, String key, String message) {
val ??= '';
if (val.contains(comparer) == false) {
addNotificationByKeyAndMessage(key, message);
}
return this;
}