diff --git a/src/content.rs b/src/content.rs
index 2663e10..e652414 100644
--- a/src/content.rs
+++ b/src/content.rs
@@ -12,7 +12,7 @@ pub enum Segment {
     Word(String),
 }
 
-#[derive(Debug, Clone)]
+#[derive(Clone, Debug)]
 #[non_exhaustive]
 pub struct Chunk {
     pub segments: Vec<Segment>,
diff --git a/src/lib.rs b/src/lib.rs
index 8b34ebc..e3d8d7a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -45,6 +45,10 @@ pub fn to_case(
     }
 }
 
+pub fn testf(_chunk: impl Into<Chunk>) -> Result<String> {
+    Ok("some pseudo return data".into())
+}
+
 /// Convert a string to title case following typesetting conventions for a target locale
 pub fn to_titlecase(
     chunk: impl Into<Chunk>,
diff --git a/src/lua.rs b/src/lua.rs
index 5bb6554..eaf16e2 100644
--- a/src/lua.rs
+++ b/src/lua.rs
@@ -6,6 +6,15 @@ use mlua::prelude::*;
 
 pub use crate::types::{Case, Locale, Result, StyleGuide};
 
+impl FromLua for Chunk {
+    fn from_lua(value: LuaValue, _: &Lua) -> LuaResult<Self> {
+        match value {
+            LuaValue::String(s) => Ok(s.to_string_lossy().into()),
+            _ => todo!(),
+        }
+    }
+}
+
 #[mlua::lua_module]
 fn decasify(lua: &Lua) -> LuaResult<LuaTable> {
     let exports = lua.create_table().unwrap();
@@ -22,6 +31,7 @@ fn decasify(lua: &Lua) -> LuaResult<LuaTable> {
     let version = option_env!("VERGEN_GIT_DESCRIBE").unwrap_or_else(|| env!("CARGO_PKG_VERSION"));
     let version = lua.create_string(version)?;
     exports.set("version", version).unwrap();
+    exports.set("testf", LuaFunction::wrap_raw::<_, (Chunk,)>(testf))?;
     Ok(exports)
 }