project structure and database

models/base.py

@@ -0,0 +1,12 @@
+from sqlalchemy.ext.asyncio import AsyncAttrs
+from sqlalchemy.orm import DeclarativeBase
+
+
+class BaseModel(DeclarativeBase, AsyncAttrs):
+    def __repr__(self):
+        if hasattr(self, 'id'):
+            return f'<{self.__class__.__name__} id={self.id}>'
+        return super().__repr__()
+
+
+metadata = BaseModel.metadata