import org.simantics.operation.Layer0X;\r
import org.simantics.scl.runtime.function.FunctionImpl2;\r
import org.simantics.utils.datastructures.Pair;\r
import org.simantics.operation.Layer0X;\r
import org.simantics.scl.runtime.function.FunctionImpl2;\r
import org.simantics.utils.datastructures.Pair;\r