--- mlton.sig	2020-08-06 16:59:29.000000000 +0200
+++ mlton.sig_special2020boot	2020-08-04 18:34:39.000000000 +0200
@@ -29,7 +29,8 @@
 (*      val serialize: 'a -> Word8Vector.vector *)
       val share: 'a -> unit
       val shareAll: unit -> unit
-      val size: 'a -> int
+      val size: 'a -> IntInf.int
+      val sizeAll: unit -> IntInf.int
 
       structure Array: MLTON_ARRAY
       structure BinIO: MLTON_BIN_IO