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-rw-r--r--src/ast_util.mli1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/ast_util.mli b/src/ast_util.mli
index 823fcebb..0c42d9d3 100644
--- a/src/ast_util.mli
+++ b/src/ast_util.mli
@@ -403,6 +403,7 @@ val ids_of_def : 'a def -> IdSet.t
val ids_of_defs : 'a defs -> IdSet.t
val pat_ids : 'a pat -> IdSet.t
+
val subst : id -> 'a exp -> 'a exp -> 'a exp
val hex_to_bin : string -> string