Sku checking in Order class

camisatoshi_wordpress_reports/order.py

@@ -9,6 +9,12 @@ class Order:
     def __getitem__(self, item):
         return self.raw_data[item]
 
+    def contains_sku(self, sku: str) -> bool:
+        for item in self["line_items"]:
+            if item["sku"] == sku:
+                return True
+        return False
+
     @classmethod
     def from_api_response(cls, raw_data) -> "Order":
         return Order(raw_data)