1 files changed, 3 insertions, 0 deletions
diff --git a/doc/usage/func_expand.rs b/doc/usage/func_expand.rs
new file mode 100644
index 0000000..70dee21
--- /dev/null
+++ b/doc/usage/func_expand.rs
@@ -0,0 +1,3 @@
+pub fn greet(name: &str) -> String {
+    "Hello, {name}!".to_string()
+}