Add an example class and some demo code to the project.

demo/example.gd

@@ -0,0 +1,6 @@
+extends Node
+
+
+func _ready() -> void:
+	var example := ExampleClass.new()
+	example.print_type(example)

demo/example.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://dh0oj81pufivs"]
+
+[ext_resource type="Script" path="res://example.gd" id="1_jdh55"]
+
+[node name="Node" type="Node"]
+script = ExtResource("1_jdh55")