diff --git a/catalystwan/api/templates/models/cisco_secure_internet_gateway.py b/catalystwan/api/templates/models/cisco_secure_internet_gateway.py
index 71b01362..b7bf6e20 100644
--- a/catalystwan/api/templates/models/cisco_secure_internet_gateway.py
+++ b/catalystwan/api/templates/models/cisco_secure_internet_gateway.py
@@ -81,8 +81,12 @@ class Interface(FeatureTemplateValidator):
     description: Optional[str] = None
     unnumbered: bool = True
     address: Optional[ipaddress.IPv4Interface] = None
-    tunnel_source: Optional[ipaddress.IPv4Address] = Field(default=None, json_schema_extra={"vmanage_key": "tunnel-source"})
-    tunnel_source_interface: Optional[str] = Field(default=None, json_schema_extra={"vmanage_key": "tunnel-source-interface"})
+    tunnel_source: Optional[ipaddress.IPv4Address] = Field(
+        default=None, json_schema_extra={"vmanage_key": "tunnel-source"}
+    )
+    tunnel_source_interface: Optional[str] = Field(
+        default=None, json_schema_extra={"vmanage_key": "tunnel-source-interface"}
+    )
     tunnel_route_via: Optional[str] = Field(default=None, json_schema_extra={"vmanage_key": "tunnel-route-via"})
     tunnel_destination: str = Field(json_schema_extra={"vmanage_key": "tunnel-destination"})
     application: Application = Application.SIG
@@ -157,7 +161,9 @@ class RefreshTimeUnit(str, Enum):
 
 class Service(FeatureTemplateValidator):
     svc_type: SvcType = Field(SvcType.SIG, json_schema_extra={"vmanage_key": "svc-type"})
-    interface_pair: List[InterfacePair] = Field(json_schema_extra={"data_path": ["ha-pairs"], "vmanage_key": "interface-pair"})
+    interface_pair: List[InterfacePair] = Field(
+        json_schema_extra={"data_path": ["ha-pairs"], "vmanage_key": "interface-pair"}
+    )
     auth_required: Optional[bool] = Field(False, json_schema_extra={"vmanage_key": "auth-required"})
     xff_forward_enabled: Optional[bool] = Field(False, json_schema_extra={"vmanage_key": "xff-forward-enabled"})
     ofw_enabled: Optional[bool] = Field(False, json_schema_extra={"vmanage_key": "ofw-enabled"})
@@ -208,7 +214,9 @@ class CiscoSecureInternetGatewayModel(FeatureTemplate):
     vpn_id: int = Field(DEFAULT_SIG_VPN_ID, json_schema_extra={"vmanage_key": "vpn-id"})
     interface: List[Interface]
     service: List[Service]
-    tracker_src_ip: Optional[ipaddress.IPv4Interface] = Field(default=None, json_schema_extra={"vmanage_key": "tracker-src-ip"})
+    tracker_src_ip: Optional[ipaddress.IPv4Interface] = Field(
+        default=None, json_schema_extra={"vmanage_key": "tracker-src-ip"}
+    )
     tracker: Optional[List[Tracker]] = None
 
     payload_path: ClassVar[Path] = Path(__file__).parent / "DEPRECATED"
diff --git a/catalystwan/integration_tests/test_find_template_values.py b/catalystwan/integration_tests/test_find_template_values.py
index ead2692d..b650ecd1 100644
--- a/catalystwan/integration_tests/test_find_template_values.py
+++ b/catalystwan/integration_tests/test_find_template_values.py
@@ -1,10 +1,7 @@
+import json
 import os
 import unittest
 from typing import Any, List, cast
-import json
-
-from pydantic import ValidationError
-from catalystwan.exceptions import TemplateTypeError
 
 from catalystwan.session import create_manager_session
 from catalystwan.utils.feature_template.find_template_values import find_template_values
@@ -19,7 +16,7 @@ def setUp(self) -> None:
             password=cast(str, os.environ.get("TEST_VMANAGE_PASSWORD")),
         )
         self.templates = self.session.api.templates._get_feature_templates(summary=False)
-    
+
     def test_find_template_value(self):
         for template in self.templates:
             definition = json.loads(template.template_definiton)
diff --git a/catalystwan/utils/feature_template/find_template_values.py b/catalystwan/utils/feature_template/find_template_values.py
index d281859e..7df7bea6 100644
--- a/catalystwan/utils/feature_template/find_template_values.py
+++ b/catalystwan/utils/feature_template/find_template_values.py
@@ -57,7 +57,7 @@ def find_template_values(
                     else:
                         current_nesting[field_key].append(find_template_values(item, device_specific_variables))
                 else:
-                    current_nesting[field_key].append(item)    
+                    current_nesting[field_key].append(item)
         elif template_definition["vipObjectType"] != "tree":
             current_nesting = get_nested_dict(templated_values, path[:-1])
             current_nesting[field_key] = template_value