diff --git a/src/model.rs b/src/model.rs
index 2a9438f..d163a2f 100644
--- a/src/model.rs
+++ b/src/model.rs
@@ -11,6 +11,7 @@ pub struct Model {
 }
 
 impl Model {
+    /// Returns a new set of parameters.
     pub fn params() -> Params {
         Params::new()
     }