package Ġarrow . effects . data . internal Ċ Ċ import Ġjava . util . concurrent . Cancellation Exception Ġas ĠJava Cancellation Exception Ċ Ċ data Ġclass ĠBinding Cancellation Exception ( override Ġval Ġmessage : ĠString ? Ġ= Ġnull ) Ġ: ĠJava Cancellation Exception ()