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updaters/base.py

@@ -0,0 +1,15 @@
+from abc import ABC, abstractmethod
+from typing import List
+
+from database import Marketplace
+from updaters.stocks_updater import StockUpdate
+
+
+class BaseMarketplaceUpdater(ABC):
+    @abstractmethod
+    def __init__(self, marketplace: Marketplace):
+        pass
+
+    @abstractmethod
+    async def update(self, updates: List[StockUpdate]):
+        pass