Fixes for flake8

Author: JaviCerveraIngram

connect/models/fulfillment.py

@@ -15,15 +15,21 @@
 class Fulfillment(BaseModel):
     @property
     def new_items(self):
-        return list(filter(lambda item: item.quantity > 0 and item.old_quantity == 0, self.asset.items))
+        return list(filter(
+            lambda item: item.quantity > 0 and item.old_quantity == 0,
+            self.asset.items))
 
     @property
     def changed_items(self):
-        return list(filter(lambda item: item.quantity > 0 and item.old_quantity > 0, self.asset.items))
+        return list(filter(
+            lambda item: item.quantity > 0 and item.old_quantity > 0,
+            self.asset.items))
 
     @property
     def removed_items(self):
-        return list(filter(lambda item: item.quantity == 0 and item.old_quantity > 0, self.asset.items))
+        return list(filter(
+            lambda item: item.quantity == 0 and item.old_quantity > 0,
+            self.asset.items))
 
 
 class FulfillmentSchema(BaseSchema):