diff --git a/codegen/src/lib.rs b/codegen/src/lib.rs
index e65dc261958f4..523b0d72ca712 100644
--- a/codegen/src/lib.rs
+++ b/codegen/src/lib.rs
@@ -25,5 +25,9 @@ pub use self::{
         generate_runtime_api,
         RuntimeGenerator,
     },
-    types::GeneratedTypeDerives,
+    types::{
+        GeneratedTypeDerives,
+        Module,
+        TypeGenerator,
+    },
 };
diff --git a/codegen/src/types/mod.rs b/codegen/src/types/mod.rs
index b6972bdc7ff27..c29dbd341293e 100644
--- a/codegen/src/types/mod.rs
+++ b/codegen/src/types/mod.rs
@@ -221,6 +221,7 @@ impl<'a> TypeGenerator<'a> {
     }
 }
 
+/// Represents a Rust `mod`, containing generated types and child `mod`s.
 #[derive(Debug)]
 pub struct Module<'a> {
     name: Ident,
@@ -248,7 +249,8 @@ impl<'a> ToTokens for Module<'a> {
 }
 
 impl<'a> Module<'a> {
-    pub fn new(name: Ident, root_mod: Ident) -> Self {
+    /// Create a new [`Module`], with a reference to the root `mod` for resolving type paths.
+    pub(crate) fn new(name: Ident, root_mod: Ident) -> Self {
         Self {
             name,
             root_mod,