def sys.write.done
import ezsys@0.1.0.0/src/sys.bend as Sysimport Base
109# close the file, then answer the write's result
110def sys.write.done(
111 pair: File & Result<&1, &1, U32 & String, Unit>
112) -> IO(Result<&1, &1, U32 & String, Unit>):
113 (file, res) = pair
114 IO.bind(Unit, Result<&1, &1, U32 & String, Unit>, File.close(file),
115 _u => IO.pure(Result<&1, &1, U32 & String, Unit>, res))