package Ġio . g rim locations . data . dto Ċ Ċ import Ġio . g rim locations . framework . data . dto . User Created Name DTO Ċ import Ġio . g rim locations . framework . util . assign Once Ċ import Ġjava . time . LocalDateTime Ċ Ċ const Ġval ĠRES ER VED _ NO _ DIFF IC UL TIES _ IND IC ATOR _ NAME Ġ= Ġ"__ RESERVED _ NO _ DIFF IC UL TIES __ " Ċ var ĠRES ER VED _ NO _ DIFF IC UL TIES _ IND IC ATOR : ĠDiff iculty DTO Ġby Ġassign Once () Ċ Ċ data Ġclass ĠDiff iculty DTO ( ĊĠĠĠ Ġoverride Ġval Ġid : ĠInt , ĊĠĠĠ Ġoverride Ġval Ġcreated : ĠLocalDateTime , ĊĠĠĠ Ġoverride Ġval Ġmodified : ĠLocalDateTime , ĊĠĠĠ Ġoverride Ġval Ġname : ĠString , ĊĠĠĠ Ġoverride Ġval Ġis User Created : ĠBoolean , Ċ ) Ġ: ĠUser Created Name DTO Ċ Ċ var ĠNO _ DIFF IC UL TIES _ LIST : ĠList < Difficulty DTO > Ġby Ġassign Once ()