v1.4.3

- Fixes `FixedSizeList` to take a generic `T` type, rather than
explicitly a `String`

lib/src/classes/fixed_size_list.dart

@@ -2,20 +2,20 @@
 ///
 /// When a new element is added and the list reaches its maximum capacity,
 /// the oldest element in the list is automatically removed to make space.
-class FixedSizeList {
+class FixedSizeList<T> {
   final int _capacity;
-  final List<String> _list;
+  final List<T?> _list;
 
   /// Creates a [FixedSizeList] with the specified [capacity].
   ///
   /// The initial list will be empty.
-  FixedSizeList(this._capacity) : _list = <String>[];
+  FixedSizeList(this._capacity) : _list = <T?>[];
 
   /// Adds a new [element] to the list.
   ///
   /// If the list is already at its maximum [capacity], the oldest element
   /// will be removed before the new [element] is added.
-  void add(String element) {
+  void add(T? element) {
     _list.add(element);
     if (_list.length > _capacity) {
       _list.removeAt(0);
@@ -25,5 +25,5 @@ class FixedSizeList {
   /// Returns an unmodifiable view of the current items in the list.
   ///
   /// This prevents external modification of the internal list.
-  List<String> get items => List.unmodifiable(_list);
+  List<T?> get items => List.unmodifiable(_list);
 }