1 files changed, 1 insertions, 1 deletions

diff --git a/types.d.ts b/types.d.ts
index 6739537..bc99a44 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -1 +1 @@
-export type ExerciseModuleFunc = (input: string) => void;
+export type ExerciseModuleFunc = (input: string) => string;