The PrefabStage class represents an editing context for Prefab Assets.
        A stage is an editing context which includes a collection of Scenes. The main stage contains all the currently open regular Scenes, while a Prefab stage contains a preview Scene used solely for editing the Prefab in.
The breadcrumbs which are shown in the Scene view when in Prefab Mode each represent a stage. Those with a Prefab icon represent Prefab stages.
      
| assetPath | The asset path where the Prefab Asset file is stored, relative to the project root. | 
| mode | The Prefab Stage can be opened either in isolation or in context. | 
| openedFromInstanceObject | A GameObject inside the Prefab instance that you opened Prefab Mode through. | 
| openedFromInstanceRoot | The root of the Prefab instance that you opened Prefab Mode through. | 
| prefabContentsRoot | The root GameObject of the loaded Prefab Asset contents. | 
| ClearDirtiness | Clear the dirtyness flag for the Prefab stage. | 
| IsPartOfPrefabContents | Is this GameObject part of the loaded Prefab Asset contents in the Prefab stage? | 
| prefabSaved | Callback that is invoked whenever the contents of a Prefab stage has been saved. | 
| prefabSaving | Callback that's invoked whenever the contents of a Prefab stage is about to be saved. | 
| prefabStageClosing | Callback that's invoked whenever a Prefab stage is about to be opened. | 
| prefabStageDirtied | Callback that's invoked whenever a Prefab stage changes from unmodified to modified. | 
| prefabStageOpened | Callback that's invoked whenever a Prefab stage has been opened. | 
| hideFlags | Should the object be hidden, saved with the Scene or modifiable by the user? | 
| name | オブジェクト名 | 
| scene | The preview Scene this stage controls. Stage content should be moved into this Scene. | 
| stageHandle | See Stage.stageHandle. | 
| assetPath | The path of the Asset file associated with the stage, relative to the project root folder. | 
| stageHandle | The StageHandle struct for this stage. | 
| GetInstanceID | Gets the instance ID of the object. | 
| ToString | Returns the name of the object. | 
| FindComponentOfType | Returns the first active loaded object of the given type. | 
| FindComponentsOfType | Returns a list of all active loaded objects of the given type. | 
| GetCombinedSceneCullingMaskForCamera | Gets the Scene culling mask from this Stage. | 
| OnCloseStage | Unity calls this method when the Stage is closed. Classes that inherit from PreviewSceneStage should implement cleanup logic in this method. | 
| OnOpenStage | Unity calls this method when the Stage is opened. Classes that inherit from PreviewSceneStage should implement initialization logic in this method. | 
| CreateHeaderContent | Creates the header content for this Stage. Both the Hierarchy window header and Scene view breadcrumb bar use this content. | 
| GetHashForStateStorage | Unity calls this method to get a hash code that is used to save the state of the Stage to disk. | 
| OnCloseStage | Unity calls this method when the Stage is closed. Classes that inherit from Stage should implement cleanup logic in this method. | 
| OnDisable | See ScriptableObject.OnDisable. | 
| OnEnable | See ScriptableObject.OnEnable. | 
| OnFirstTimeOpenStageInSceneView | Unity calls this method the first time a Stage is opened for a specific Asset, for a specific Scene view. | 
| OnOpenStage | Unity calls this method when the Stage is opened. Classes that inherit from Stage should implement initialization logic in this method. | 
| OnReturnToStage | Unity calls this method when you return to a Stage that is already open. | 
| Destroy | Removes a GameObject, component or asset. | 
| DestroyImmediate | Destroys the object obj immediately. You are strongly recommended to use Destroy instead. | 
| DontDestroyOnLoad | Do not destroy the target Object when loading a new Scene. | 
| FindAnyObjectByType | Retrieves any active loaded object of Type type. | 
| FindFirstObjectByType | Retrieves the first active loaded object of Type type. | 
| FindObjectOfType | タイプ type から最初に見つけたアクティブのオブジェクトを返します | 
| FindObjectsByType | Retrieves a list of all loaded objects of Type type. | 
| FindObjectsOfType | Gets a list of all loaded objects of Type type. | 
| Instantiate | original のオブジェクトをクローンします | 
| CreateInstance | ScriptableObject のインスタンスを作成します。 | 
| bool | オブジェクトが存在するかどうか | 
| operator != | 二つのオブジェクトが異なるオブジェクトを参照しているか比較します | 
| operator == | 2つのオブジェクト参照が同じオブジェクトを参照しているか比較します。 | 
| Awake | ScriptableObject スクリプトを開始するとき、この関数は呼び出されます。 | 
| OnDestroy | ScriptableObject が破棄されるとき、この関数は呼び出されます。 | 
| OnDisable | ScriptableObject クラスのオブジェクトがスコープを外れるとき、この関数は呼び出されます。 | 
| OnEnable | オブジェクトがロードされたとき、この関数は呼び出されます。 | 
| OnValidate | Editor-only function that Unity calls when the script is loaded or a value changes in the Inspector. | 
| Reset | デフォルト値にリセットします |