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-rw-r--r--src/sdl_version.erl2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/sdl_version.erl b/src/sdl_version.erl
index 7d2d93a..488b712 100644
--- a/src/sdl_version.erl
+++ b/src/sdl_version.erl
@@ -17,8 +17,10 @@
-export([get_version/0]).
-export([get_revision/0]).
+-spec get_version() -> {byte(), byte(), byte()}.
get_version() ->
esdl2:get_version().
+-spec get_revision() -> string().
get_revision() ->
esdl2:get_revision().