1.add an example to show

Sample/Editor/HelloEditor.asset

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Sample/Editor/HelloEditor.cs

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+using TNode.Editor;
+using UnityEditor;
+using UnityEditor.Callbacks;
+using UnityEngine;
+
+namespace Sample.Editor{
+    public class HelloEditor : GraphEditor<HelloGraph>{
+        [OnOpenAsset]
+        public static bool OnOpenAsset(int instanceID, int line){
+            var graph = EditorUtility.InstanceIDToObject(instanceID) as HelloGraph;
+            if (graph != null)
+            {
+                var wnd = GetWindow<HelloEditor>();
+                wnd.titleContent = new GUIContent("HelloGraph Editor");
+                wnd.CreateGUI();
+                wnd._graphView.Data = graph;
+                return true;
+            }
+            return false;
+        }
+    }
+}

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Sample/Editor/HelloGraph.cs

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+using System;
+using TNode.Models;
+using UnityEngine;
+
+namespace Sample.Editor{
+    [CreateAssetMenu(fileName = "New HelloGraph", menuName = "TNode/HelloGraph")]
+    [Serializable]
+    public class HelloGraph : GraphData{
+    
+    }
+}

Sample/Editor/HelloGraph.cs.meta

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Sample/Editor/HelloGraphView.cs

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+using TNode.Attribute;
+using TNode.Editor.BaseViews;
+
+namespace Sample.Editor{
+    [NodeComponent]
+    public class HelloGraphView : DataGraphView<HelloGraph>{
+    
+    }
+}

Sample/Editor/HelloGraphView.cs.meta

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Sample/New HelloGraph.asset

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TNode/Editor/Resources/NodeInsepctor.uxml

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+<ui:UXML xmlns:ui="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements" xsi="http://www.w3.org/2001/XMLSchema-instance" engine="UnityEngine.UIElements" editor="UnityEditor.UIElements" noNamespaceSchemaLocation="../../../../UIElementsSchema/UIElements.xsd" editor-extension-mode="False">
+    <ui:VisualElement name="InspectorBody" style="height: 458px; background-color: rgba(36, 36, 36, 255);" />
+</ui:UXML>

TNode/Editor/Resources/NodeInsepctor.uxml.meta

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