diff --git a/openbb_sdk/sdk/provider/openbb_provider/abstract/fetcher.py b/openbb_sdk/sdk/provider/openbb_provider/abstract/fetcher.py
index 1ce2740d41e..ddb9f4d73bf 100644
--- a/openbb_sdk/sdk/provider/openbb_provider/abstract/fetcher.py
+++ b/openbb_sdk/sdk/provider/openbb_provider/abstract/fetcher.py
@@ -1,6 +1,7 @@
 """Abstract class for the fetcher."""
 
 
+from abc import abstractmethod
 from typing import Any, Dict, Generic, List, Optional, TypeVar, Union
 
 from openbb_provider.abstract.data import Data, QueryParams
@@ -53,24 +54,28 @@ class Fetcher(
         return data
 
     @property
+    @abstractmethod
     def query_params_type(self):
         """Get the type of the query."""
         # pylint: disable=E1101
         return self.__orig_bases__[0].__args__[0]
 
     @property
+    @abstractmethod
     def data_type(self):
         """Get the type of the data."""
         # pylint: disable=E1101
         return self.__orig_bases__[0].__args__[1]
 
     @property
+    @abstractmethod
     def provider_query_params_type(self):
         """Get the type of the provider query."""
         # pylint: disable=E1101
         return self.__orig_bases__[0].__args__[2]
 
     @property
+    @abstractmethod
     def provider_data_type(self):
         """Get the type of the provider data."""
         # pylint: disable=E1101