diff --git a/lib/main.dart b/lib/main.dart
index d9f6ebd..bf0fe50 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -73,11 +73,12 @@ class _MyHomePageState extends State<MyHomePage> {
       _counter++;
     });
   }
+
   // TODO :find a better way to show the list
   void show_result(Future<List<String>> future_id) async {
     var tmp = await future_id;
     id = tmp[0];
-    setState(() { });
+    setState(() {});
   }
 
   @override
@@ -123,12 +124,14 @@ class _MyHomePageState extends State<MyHomePage> {
               style: Theme.of(context).textTheme.headlineMedium,
             ),
             Text('API key from ENV is $API_KEY'),
-            MaterialButton(onPressed: () { show_result(ApiHandler.findStations('S Biesdorf')); setState(() {}); },
-              child: Text(
-                  'Search for \'S Biesdorf\''
-              ),
+            MaterialButton(
+              onPressed: () {
+                show_result(ApiHandler.findStations('S Biesdorf'));
+                setState(() {});
+              },
+              child: Text('Search for \'S Biesdorf\''),
             ),
-            Text(id)
+            Text(id),
           ],
         ),
       ),
@@ -139,4 +142,4 @@ class _MyHomePageState extends State<MyHomePage> {
       ),
     );
   }
-}
+}
\ No newline at end of file
diff --git a/lib/transport_helper.dart b/lib/transport_helper.dart
index 621d951..bdf06fa 100644
--- a/lib/transport_helper.dart
+++ b/lib/transport_helper.dart
@@ -8,7 +8,6 @@ class Route {
   });
 
   // from trip API request
-
   factory Route.fromJson(Map<String, dynamic> json) => Route(
     segments: json["LegList"]["Leg"].map((leg) => Segment.fromJson(leg)),
     duration:
@@ -58,8 +57,9 @@ class Station {
     id: json["id"] as String? ?? json["extId"] as String,
     name: json["name"],
     transportLines: json.containsKey("productAtStop")
-        ? json["productAtStop"].map((jsonLine) =>
-            Line.fromJson(jsonLine as Map<String, dynamic>))
+        ? json["productAtStop"].map(
+            (jsonLine) => Line.fromJson(jsonLine as Map<String, dynamic>),
+          )
         : const [],
   );
 }
@@ -126,7 +126,7 @@ class Departure {
   Departure({
     required this.vehicle,
     required this.station,
-    required this.departureTime
+    required this.departureTime,
   });
 }
 
@@ -138,22 +138,21 @@ class Color {
   Color({
     required this.r,
     required this.g,
-    required this.b
+    required this.b,
   });
 
   factory Color.fromJson(Map<String, dynamic> json) => Color(
     r: json["r"],
     g: json["g"],
-    b: json["b"]
+    b: json["b"],
   );
 }
 
-
-enum VehicleType{
+enum VehicleType {
   bus,
   tram,
   metro,
   subway,
   regionalTrain,
-  PLACEHOLDER
+  PLACEHOLDER,
 }