fixing build issues

Author: pmajali

linode_api4/objects/monitor.py

@@ -5,7 +5,7 @@
     "MonitorServiceToken",
     "AggregateFunction",
 ]
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import List, Optional
 
 from linode_api4.objects.base import Base, Property
@@ -123,8 +123,8 @@ class DashboardWidget(JSONObject):
     chart_type: ChartType = ""
     y_label: str = ""
     aggregate_function: AggregateFunction = ""
-    group_by: Optional[List[str]] = None
-    filters: Optional[List[Filter]] = None
+    group_by: List[str] = field(default_factory=list)
+    filters: List[Filter] = field(default_factory=list)
 
 
 @dataclass

test/unit/objects/region_test.py

@@ -27,7 +27,6 @@ def test_get_region(self):
             region.placement_group_limits.maximum_linodes_per_pg, 5
         )
 
-
         # Test monitors section
         self.assertIsNotNone(region.monitors)
         self.assertEqual(region.monitors.alerts, ["Managed Databases"])
@@ -36,7 +35,6 @@ def test_get_region(self):
         self.assertIsNotNone(region.capabilities)
         self.assertIn("Linode Interfaces", region.capabilities)
 
-
     def test_region_availability(self):
         """
         Tests that availability for a specific region can be listed and filtered on.