fixed schema

Author: LukaMilivojevic

docs/docs/06_sql_storage_sqlalchemy/02_create_simple_sqlalchemy_model/start/schemas.py

@@ -5,7 +5,7 @@ class ItemSchema(Schema):
     id = fields.Str(dump_only=True)
     name = fields.Str(required=True)
     price = fields.Float(required=True)
-    store_id = fields.Int(required=True)
+    store_id = fields.Str(required=True)
 
 
 class ItemUpdateSchema(Schema):