UnityEditor.HierarchyProperty.FilterSingleSceneObject C# (CSharp) Method

        public static extern void FilterSingleSceneObject(int instanceID, bool otherVisibilityState);
        ~HierarchyProperty()

        private void EnableFocus()
        {
            switch (TilemapEditorUserSettings.focusMode)
            {
            case TilemapEditorUserSettings.FocusMode.Tilemap:
            {
                if (SceneView.lastActiveSceneView != null)
                {
                    SceneView.lastActiveSceneView.SetSceneViewFiltering(true);
                }
                HierarchyProperty.FilterSingleSceneObject(GridPaintingState.scenePaintTarget.GetInstanceID(), false);
                break;
            }

            case TilemapEditorUserSettings.FocusMode.Grid:
            {
                Tilemap tilemap = GridPaintingState.scenePaintTarget.GetComponent <Tilemap>();
                if (tilemap != null && tilemap.layoutGrid != null)
                {
                    if (SceneView.lastActiveSceneView != null)
                    {
                        SceneView.lastActiveSceneView.SetSceneViewFiltering(true);
                    }
                    HierarchyProperty.FilterSingleSceneObject(tilemap.layoutGrid.gameObject.GetInstanceID(), false);
                }
                break;
            }

            default:
            {
                break;
            }
            }
        }