package Ġru . drone lek tron . mic rol isp . syntax tree . program Ċ Ċ import Ġru . drone lek tron . mic rol isp . syntax tree . definition . Definition Node Ċ Ċ class ĠDefinitions Node Ġ{ Ċ ĉ val Ġdefinition Nodes Ġ= Ġmutable ListOf < Definition Node >() Ċ } Ċ