checkIf

inline fun <T> CompoundButton.checkIf(parent: CSHasChangeValue<T>, crossinline child: (T) -> CSProperty<Boolean>): CSRegistration
@JvmName(name = "checkedIfChildNullable")
inline fun <T> CompoundButton.checkIf(parent: CSHasChangeValue<T>, crossinline childNullable: (T) -> CSProperty<Boolean>?): CSRegistration