diff --git a/models/Artboard/index.d.ts b/models/Artboard/index.d.ts
index 9e7cb65..6f751e5 100644
--- a/models/Artboard/index.d.ts
+++ b/models/Artboard/index.d.ts
@@ -4,7 +4,6 @@ import RulerData from '../RulerData';
 
 declare class Artboard extends Group {
   _class: 'artboard';
-  shouldBreakMaskChain: boolean;
   backgroundColor: Color;
   hasBackgroundColor: boolean;
   horizontalRulerData: RulerData;
diff --git a/models/Bitmap/index.d.ts b/models/Bitmap/index.d.ts
index 07d59da..32b79b6 100644
--- a/models/Bitmap/index.d.ts
+++ b/models/Bitmap/index.d.ts
@@ -11,58 +11,24 @@
  * and limitations under the License.
  */
 
- 
-export interface BitmapLayer {
-  _class?: 'bitmapLayer'
-  booleanOperation?: number
-  clippingMask: Record<string, any>
-  clippingMaskMode?: number
-  do_objectID?: string
-  exportOptions?: {
-    [k: string]: any
-  }
-  fillReplacesImage?: boolean
-  flow?: {
-    [k: string]: any
-  }
-  frame?: {
-    [k: string]: any
-  }
-  hasClippingMask?: boolean
-  image?: {
-    [k: string]: any
-  }
-  imageHash?: {
-    [k: string]: any
-  }
+import Layer = require('../Layer');
+
+declare class Bitmap extends Layer {
+  _class: 'bitmap';
+  clippingMask: Record<string, any>;
+  clippingMaskMode?: number;
+  fillReplacesImage?: boolean;
+  flow?: Record<string, any>;
+  hasClippingMask?: boolean;
+  image?: Record<string, any>;
+  imageHash?: Record<string, any>;
   /**
    * The scale the image was imported with into Sketch. This can be derived on import from the DPI of the image or the suffixes (@2x) of the filename. On legacy documents defaults to 0, which is meant to be the default image DPI of 72.
    */
-  intendedDPI?: number
-  isFixedToViewport?: boolean
-  isFlippedHorizontal?: boolean
-  isFlippedVertical?: boolean
-  isLocked?: boolean
-  isVisible?: boolean
-  layerListExpandedType?: number
-  name?: {
-    [k: string]: any
-  }
-  nameIsFixed?: boolean
-  originalObjectID?: {
-    [k: string]: any
-  }
-  resizingConstraint?: number
-  resizingType?: number
-  rotation?: number
-  sharedStyleID?: {
-    [k: string]: any
-  }
-  shouldBreakMaskChain?: boolean
-  style?: {
-    [k: string]: any
-  }
-  userInfo?: {
-    [k: string]: any
-  }
-}
\ No newline at end of file
+  intendedDPI?: number;
+  originalObjectID?: Record<string, any>;
+  sharedStyleID?: Record<string, any>;
+  userInfo?: Record<string, any>
+}
+
+export = Bitmap;
diff --git a/models/Group/index.d.ts b/models/Group/index.d.ts
index e4638d8..137abd5 100644
--- a/models/Group/index.d.ts
+++ b/models/Group/index.d.ts
@@ -2,8 +2,6 @@ import Layer from '../Layer';
 
 declare class Group extends Layer {
   _class: string;
-  layerListExpandedType: number;
-  resizingConstraint: number;
   hasClickThrough: boolean;
   constructor(args?: any, json?: any);
 }
diff --git a/models/Layer/index.d.ts b/models/Layer/index.d.ts
index 894ee9b..20db48d 100644
--- a/models/Layer/index.d.ts
+++ b/models/Layer/index.d.ts
@@ -15,7 +15,6 @@ declare class Layer {
   isFlippedVertical: boolean;
   isLocked: boolean;
   isVisible: boolean;
-  layerListExpandedType: number;
   name: string;
   nameIsFixed: boolean;
   resizingConstraint: number;
diff --git a/models/Page/index.d.ts b/models/Page/index.d.ts
index 21b7f62..ec32131 100644
--- a/models/Page/index.d.ts
+++ b/models/Page/index.d.ts
@@ -6,8 +6,6 @@ declare class Page extends Group {
 
   constructor(args?: any, json?: any);
 
-  getID(): string;
-
   getArtboards(predicate?: string | RegExp): Artboard[];
 
   getArtboard(name: string): Artboard | undefined;
diff --git a/models/ShapeGroup/index.d.ts b/models/ShapeGroup/index.d.ts
index 6d568b6..d096f62 100644
--- a/models/ShapeGroup/index.d.ts
+++ b/models/ShapeGroup/index.d.ts
@@ -8,7 +8,6 @@ declare class ShapeGroup extends Layer {
   static ShapePath(args: any): ShapeGroup;
 
   _class: 'shapeGroup';
-  layerListExpandedType: number;
   clippingMaskMode: number;
   hasClippingMask: boolean;
   windingRule: number;