diff --git a/pytiled_parser/properties.py b/pytiled_parser/properties.py
index bc20c30..9fda86d 100644
--- a/pytiled_parser/properties.py
+++ b/pytiled_parser/properties.py
@@ -1,11 +1,22 @@
+"""Properties Module
+
+This module casts raw properties from Tiled maps into a dictionary of
+properly typed Properties.
+"""
+
 from pathlib import Path
-from typing import Dict, List, NamedTuple, Optional, Union
+from typing import Dict, List, Union
 
 from typing_extensions import TypedDict
 
 from .common_types import Color
 
 Property = Union[float, Path, str, bool, Color]
+
+
+Properties = Dict[str, Property]
+
+
 RawProperty = Union[float, str, bool]
 
 
@@ -17,20 +28,26 @@ class RawProperties(TypedDict):
     value: RawProperty
 
 
-Properties = Dict[str, Property]
+def cast(raw_properties: List[RawProperties]) -> Dict[str, Property]:
+    """ Cast raw properties into a dictionary of completed properly typed properties.
 
+    Args:
+        raw_properties: The list of raw properties to cast.
+
+    Returns:
+        Dict[str, Property]: The completed dictionary of casted properties.
+    """
 
-def cast(raw: List[RawProperties]) -> Dict[str, Property]:
     final: Properties = {}
     value: Property
 
-    for prop in raw:
-        if prop["type"] == "file":
-            value = Path(str(prop["value"]))
-        elif prop["type"] == "color":
-            value = Color(str(prop["value"]))
+    for property_ in raw_properties:
+        if property_["type"] == "file":
+            value = Path(str(property_["value"]))
+        elif property_["type"] == "color":
+            value = Color(str(property_["value"]))
         else:
-            value = prop["value"]
-        final[str(prop["name"])] = value
+            value = property_["value"]
+        final[str(property_["name"])] = value
 
     return final