calling the load_vars() function in the constructor

robyn/__init__.py

@@ -40,7 +40,7 @@ def __init__(self, file_object: str) -> None:
         self.headers = []
         self.directories = []
         self.event_handlers = {}
-        self.load_var = load_vars()
+        load_vars()
         self._config_logger()
 
     def _add_route(self, route_type, endpoint, handler, const=False):