@Override
public <T> void putUserData(@NotNull Key<T> key, @Nullable T value) {
if (myDataHolderDelegate != null) {
myDataHolderDelegate.putUserData(key, value);
}
}
@Override
public <T> T getUserData(@NotNull Key<T> key) {
return myDataHolderDelegate == null ? null : myDataHolderDelegate.getUserData(key);
}