diff --git a/src/lib.rs b/src/lib.rs
index c39b4a8..3e0f797 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,6 +2,7 @@ pub mod access_level;
 pub mod login_result;
 pub mod song;
 pub mod token;
+pub mod types;
 pub mod user;
 
 pub fn add(left: u64, right: u64) -> u64 {
diff --git a/src/types.rs b/src/types.rs
new file mode 100644
index 0000000..cd84f04
--- /dev/null
+++ b/src/types.rs
@@ -0,0 +1,9 @@
+use std::default::Default;
+
+mod types {
+    pub enum Types {
+        WAV_EXTENSION,
+        FLAC_EXTENSION,
+        MP_EXTENSION,
+    }
+}