silence crashes

example/lib/main.dart

@@ -53,8 +53,8 @@ class _LlamaAppState extends State<LlamaApp> {
       ModelParams(),
       ContextParams(),
       SamplingParams(
-        minP: (p: 0.05, minKeep: 1),
-        temperature: (temperature: 0.8, delta: null, exponent: null),
+        minP: PArguments(p: 0.05, minKeep: 1),
+        temperature: TemperatureArguments(temperature: 0.8),
         seed: Random().nextInt(1000000)
       )
     );

lib/src/chat_message.dart

@@ -1,5 +1,10 @@
 part of '../llama.dart';
 
+typedef ChatMessageRecord = (
+  String role,
+  String content
+);
+
 class ChatMessage {
   final String role;
   final String content;
@@ -9,6 +14,10 @@ class ChatMessage {
     required this.content,
   });
 
+  ChatMessage.fromRecord(ChatMessageRecord record)
+      : role = record.$1,
+        content = record.$2;
+
   ChatMessage.fromNative(llama_chat_message message)
       : role = message.role.cast<Utf8>().toDartString(),
         content = message.content.cast<Utf8>().toDartString();
@@ -20,9 +29,24 @@ class ChatMessage {
 
     return message.ref;
   }
+
+  ChatMessageRecord toRecord() => (
+    role,
+    content
+  );
 }
 
 extension ChatMessages on List<ChatMessage> {
+  static List<ChatMessage> fromRecords(List<ChatMessageRecord> records) {
+    final List<ChatMessage> messages = [];
+
+    for (var record in records) {
+      messages.add(ChatMessage.fromRecord(record));
+    }
+
+    return messages;
+  }
+
   ffi.Pointer<llama_chat_message> toNative() {
     final messages = calloc<llama_chat_message>(length);
 
@@ -32,4 +56,14 @@ extension ChatMessages on List<ChatMessage> {
 
     return messages;
   }
+
+  List<ChatMessageRecord> toRecords() {
+    final List<ChatMessageRecord> records = [];
+
+    for (var i = 0; i < length; i++) {
+      records.add(this[i].toRecord());
+    }
+
+    return records;
+  }
 }