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-rw-r--r--exercises/12_options/options2.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/exercises/12_options/options2.rs b/exercises/12_options/options2.rs
index 73f707e..d183d1d 100644
--- a/exercises/12_options/options2.rs
+++ b/exercises/12_options/options2.rs
@@ -3,6 +3,10 @@
// Execute `rustlings hint options2` or use the `hint` watch subcommand for a
// hint.
+fn main() {
+ // You can optionally experiment here.
+}
+
#[cfg(test)]
mod tests {
#[test]