diff --git a/examples/floating_points.rs b/examples/floating_points.rs
new file mode 100644
index 0000000..aacda76
--- /dev/null
+++ b/examples/floating_points.rs
@@ -0,0 +1,31 @@
+use serde::{Deserialize, Serialize};
+
+fn main() {
+    use tagged_core::Tagged;
+    #[derive(Clone, Hash, Debug, PartialEq, Eq, Serialize, Deserialize)]
+    struct SomeCustomType {
+        some_id: String
+    }
+    #[derive(Clone, Hash, Debug, PartialEq, Eq, Serialize, Deserialize)]
+    struct SomeCustomType2(String);
+    #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+    struct User {
+        id: Tagged<f32, Self>,
+        id2: SomeCustomType,
+        id3: SomeCustomType2,
+    }
+
+    let user = User { id: 0.0.into() , id2: SomeCustomType { some_id: "2".into() }, id3: SomeCustomType2("3".into())};
+    let j = serde_json::to_string(&user).unwrap();
+    println!("{}", j);
+}
+
+/*
+Problem with normal types
+{"id":"1","id2":{"some_id":"2"}}
+
+// rust is powerful enough to solve it using touple
+{"id":"1","id2":{"some_id":"2"},"id3":"3"}
+
+// or we can use a new type called tagged that don't need a new name.
+*/
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