feature(core): add type hinting for game handler

progature/engine/core/game/handler.py

@@ -7,6 +7,14 @@
 
 class GameHandler:
     def __init__(self, game_path: str):
+        """Game handler that handles games files,
+        This class is an interface between python and json.
+
+        Parameters
+        ----------
+        game_path: str
+            Path of the game we want to work with it's files.
+        """
         self.game_path = game_path
         self.game_json = {}
 
@@ -20,13 +28,40 @@ def __exit__(self, exc_type, exc_value, traceback):
     def game_complete(self):
         self._write_on_game("is_complete", True)
 
-    def chapter_complete(self, chapter_index):
+    def chapter_complete(self, chapter_index: int) -> None:
+        """Write ``True`` on ``is_complete`` for chapter. 
+
+        Parameters
+        ----------
+        chapter_index: int
+            Index of the chapter you want to complete.
+        """
         self._write_on_chapter("is_complete", True, chapter_index)
 
-    def level_complete(self, chapter_index, level_index):
+    def level_complete(self, chapter_index: int, level_index: int) -> None:
+        """Write ``True`` on ``is_complete`` for level. 
+
+        Parameters
+        ----------
+        chapter_index: int
+            Index of the level's chapter you want to complete.
+        level_index: int
+            Index of the level you want to complete.
+        """
         self._write_on_level("is_complete", True, chapter_index, level_index)
 
     def quest_complete(self, chapter_index, level_index, quest_index):
+        """Write ``True`` on ``is_complete`` for quest. 
+
+        Parameters
+        ----------
+        chapter_index: int
+            Index of the quest's level's chapter you want to complete.
+        level_index: int
+            Index of the quest's level you want to complete.
+        quest_index: int
+            Index of the quest you want to complete.
+        """
         self._write_on_quest(
             "is_complete", True, chapter_index, level_index, quest_index
         )