Update app/utils.py

app/utils.py

@@ -13,7 +13,11 @@ logger = logging.getLogger(__name__)
 class OCRModel:
     _instance = None
     
-
+    def __new__(cls):
+        if cls._instance is None:
+            cls._instance = super(OCRModel, cls).__new__(cls)
+            cls._instance.initialize()
+        return cls._instance
     def initialize(self):
         try: