diff --git a/greeting.py b/greeting.py
new file mode 100644
index 0000000..2bfd024
--- /dev/null
+++ b/greeting.py
@@ -0,0 +1,7 @@
+def greet(name: str) -> str:
+    """Return a greeting for the given name."""
+    return f"Hello, {name}!"
+
+
+if __name__ == "__main__":
+    print(greet("World"))