Added 2 functions to store dataclasses in json files.

data_file.py

@@ -1,7 +1,6 @@
 #!/usr/bin/python3
 
 import json
-from dataclasses import dataclass
 
 
 class DictFile:
@@ -99,3 +98,19 @@ class DataclassJSONFile:
 
     def __len__(self):
         return len(self.class_instance.__dict__)
+
+
+def load_dataclass_json(dataclass, file_path: str):
+    file = open(file_path, "r")
+    class_dict = json.load(file)
+    file.close()
+
+    return dataclass(**class_dict)
+
+
+def save_dataclass_json(class_instance, file_path: str):
+    class_dict = class_instance.__dict__
+
+    file = open(file_path, "w")
+    json.dump(class_dict, file)
+    file.close()