↰
base.caps.IsoPod[T]base.caps.CapTries/0base.caps.CapTry/0base.caps.Create/0base.caps.Env/0base.caps.FEnv/0base.caps.FRandomSeed/0base.caps.FileHandleMode/0base.caps.IO/0base.caps.IsoConsumer/2base.caps.IsoPod/0base.caps.IsoPod/1base.caps.IsoViewer/2base.caps.RandomSeed/0base.caps.Read/0base.caps.System/0base.caps.TryBody/1base.caps.TryBody/2base.caps.UnrestrictedIO/0base.caps.Write/0mut .consume[R$0](f: mut base.caps.IsoConsumer[T,R$0]): R$0 -> …,
mut !: iso T,
read .peek[R$0](f: mut base.caps.IsoViewer[T,R$0]): R$0,
mut .mutate(f: imm base.F[mut T,imm base.Void]): imm base.Bool -> …,
read .isDead: imm base.Bool -> …,
mut .next(val: iso T): imm base.Void,
read .isAlive: imm base.Bool,
mut :=(val: iso T): imm base.Void -> …,mut .consume[R$0](f: mut base.caps.IsoConsumer[T,R$0]): R$0 -> …,
mut !: iso T,
read .peek[R$0](f: mut base.caps.IsoViewer[T,R$0]): R$0,
mut .mutate(f: imm base.F[mut T,imm base.Void]): imm base.Bool -> …,
read .isDead: imm base.Bool -> …,
mut .next(val: iso T): imm base.Void,
read .isAlive: imm base.Bool,
mut :=(val: iso T): imm base.Void -> …,