diff --git a/pytiled_parser/layer.py b/pytiled_parser/layer.py
index dc59a26..1f5fb4c 100644
--- a/pytiled_parser/layer.py
+++ b/pytiled_parser/layer.py
@@ -162,3 +162,7 @@ class RawLayer(TypedDict):
     width: int
     x: int
     y: int
+
+
+def cast(*args, **kwargs):
+    pass
diff --git a/pytiled_parser/map.py b/pytiled_parser/map.py
index 1a40fcb..e0be958 100644
--- a/pytiled_parser/map.py
+++ b/pytiled_parser/map.py
@@ -21,55 +21,48 @@ class Map:
     See: https://doc.mapeditor.org/en/stable/reference/tmx-map-format/#map
 
     Attributes:
-        parent_dir: The directory the TMX file is in. Used for finding relative paths
-            to TSX files and other assets.
-        version: The TMX format version.
-        tiled_version: The Tiled version used to save the file. May be a date (for
-            snapshot builds).
+        infinite: If the map is infinite or not.
+        layers: List of layer objects by draw order.
+        map_size: The map width in tiles.
+        next_layer_id: Stores the next available ID for new layers.
+        next_object_id: Stores the next available ID for new objects.
         orientation: Map orientation. Tiled supports "orthogonal", "isometric",
             "staggered" and "hexagonal"
         render_order: The order in which tiles on tile layers are rendered. Valid values
             are right-down, right-up, left-down and left-up. In all cases, the map is
+        tiled_version: The Tiled version used to save the file. May be a date (for
+            snapshot builds).
             drawn row-by-row. (only supported for orthogonal maps at the moment)
-        map_size: The map width in tiles.
-        tile_size: The width of a tile.
-        infinite: If the map is infinite or not.
+        tile_size: The size of a tile.
+        tile_sets: Tilesets used in this map.
+        version: The JSON format version.
+        background_color: The background color of the map.
+        properties: The properties of the Map.
         hex_side_length: Only for hexagonal maps. Determines the width or height
             (depending on the staggered axis) of the tile's edge, in pixels.
         stagger_axis: For staggered and hexagonal maps, determines which axis ("x" or
             "y") is staggered.
         stagger_index: For staggered and hexagonal maps, determines whether the "even"
             or "odd" indexes along the staggered axis are shifted.
-        background_color: The background color of the map.
-        next_layer_id: Stores the next available ID for new layers.
-        next_object_id: Stores the next available ID for new objects.
-        tile_sets: Dict of tile sets used in this map. Key is the first GID for the
-            tile set. The value is a TileSet object.
-        layers: List of layer objects by draw order.
     """
 
-    parent_dir: Path
-    tmx_file: Union[str, Path]
-
-    version: str
-    tiled_version: str
-    orientation: str
-    render_order: str
-    map_size: Size
-    tile_size: Size
     infinite: bool
+    layers: List[Layer]
+    map_size: Size
     next_layer_id: Optional[int]
     next_object_id: int
+    orientation: str
+    render_order: str
+    tiled_version: str
+    tile_size: Size
+    tile_sets: List[TileSet]
+    version: str
 
-    tile_sets: TileSetDict
-    layers: List[Layer]
-
+    background_color: Optional[Color] = None
+    properties: Optional[Properties] = None
     hex_side_length: Optional[int] = None
     stagger_axis: Optional[int] = None
     stagger_index: Optional[int] = None
-    background_color: Optional[Color] = None
-
-    properties: Optional[Properties] = None
 
 
 class _RawTiledMap(TypedDict):