style:Run dotnet format

src/Abstractions/src/MessageHistory/FileChatMessageHistory.cs

@@ -1,4 +1,5 @@
 using Microsoft.Extensions.AI;
+using System.Diagnostics.CodeAnalysis;
 using System.Text.Json;
 
 namespace LangChain.Memory;
@@ -61,13 +62,17 @@ public override Task Clear()
         return Task.CompletedTask;
     }
 
+    [RequiresUnreferencedCode("Calls System.Text.Json.JsonSerializer.Serialize<TValue>(TValue, JsonSerializerOptions)")]
+    [RequiresDynamicCode("Calls System.Text.Json.JsonSerializer.Serialize<TValue>(TValue, JsonSerializerOptions)")]
     private void SaveMessages()
     {
         var json = JsonSerializer.Serialize(_messages, JsonOptions);
 
         File.WriteAllText(MessagesFilePath, json);
     }
 
+    [RequiresUnreferencedCode("Calls System.Text.Json.JsonSerializer.Deserialize<TValue>(String, JsonSerializerOptions)")]
+    [RequiresDynamicCode("Calls System.Text.Json.JsonSerializer.Deserialize<TValue>(String, JsonSerializerOptions)")]
     private async Task LoadMessages()
     {
         if (File.Exists(MessagesFilePath))

src/IntegrationTests/DatabaseTests.Configure.cs

@@ -8,6 +8,7 @@ namespace LangChain.Databases.IntegrationTests;
 
 public partial class DatabaseTests
 {
+    [Obsolete]
     internal static async Task<DatabaseTestEnvironment> StartEnvironmentForAsync(SupportedDatabase database, CancellationToken cancellationToken = default)
     {
         switch (database)

src/IntegrationTests/HistoryTests.Configure.cs

@@ -8,6 +8,7 @@ namespace LangChain.Databases.IntegrationTests;
 
 public partial class HistoryTests
 {
+    [Obsolete]
     private static async Task<HistoryTestEnvironment> StartEnvironmentForAsync(SupportedDatabase database, CancellationToken cancellationToken = default)
     {
         switch (database)

src/Mongo/src/MongoChatMessageHistory.cs

@@ -3,6 +3,7 @@
 using LangChain.Databases.Mongo.Model;
 using System.Text.Json;
 using Microsoft.Extensions.AI;
+using System.Diagnostics.CodeAnalysis;
 
 namespace LangChain.Databases.Mongo;
 
@@ -19,6 +20,8 @@ await MongoRepository
             .BatchDeactivate<LangChainAiSessionHistory>(i => i.SessionId == sessionId).ConfigureAwait(false);
     }
 
+    [RequiresUnreferencedCode("Uses System.Text.Json serialization.")]
+    [RequiresDynamicCode("Uses System.Text.Json serialization.")]
     public override async Task AddMessage(ChatMessage message)
     {
         await MongoRepository.InsertAsync(new LangChainAiSessionHistory

src/OpenSearch/src/OpenSearchVectorStore.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 using System.Runtime.CompilerServices;
 using Microsoft.Extensions.VectorData;
 using OpenSearch.Client;
@@ -8,7 +9,7 @@
 /// <summary>
 /// MEVA-compatible vector store backed by OpenSearch with k-NN plugin.
 /// </summary>
 public class OpenSearchVectorStore : VectorStore
 {
     private readonly IOpenSearchClient _client;
     private readonly string? _vectorStoreName;
@@ -43,9 +44,9 @@
     public IOpenSearchClient Client => _client;
 
     /// <inheritdoc />
-    public override VectorStoreCollection<TKey, TRecord> GetCollection<TKey, TRecord>(
+    public override VectorStoreCollection<TKey, TRecord> GetCollection<TKey, [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicProperties)] TRecord>(
         string name,
         VectorStoreCollectionDefinition? definition = null)
     {
         if (typeof(TKey) != typeof(string))
         {
@@ -60,7 +61,7 @@
     }
 
     /// <inheritdoc />
     public override VectorStoreCollection<object, Dictionary<string, object?>> GetDynamicCollection(
         string name,
         VectorStoreCollectionDefinition definition)
     {

src/OpenSearch/src/OpenSearchVectorStoreCollection.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq.Expressions;
 using System.Runtime.CompilerServices;
 using Microsoft.Extensions.VectorData;
@@ -10,7 +11,7 @@
 /// <summary>
 /// MEVA-compatible vector store collection backed by an OpenSearch index with k-NN.
 /// </summary>
-public class OpenSearchVectorStoreCollection<TRecord> :
+public class OpenSearchVectorStoreCollection<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicProperties)] TRecord> :
     VectorStoreCollection<string, TRecord>
     where TRecord : class
 {
@@ -26,7 +27,7 @@
     public OpenSearchVectorStoreCollection(
         IOpenSearchClient client,
         string name,
         VectorStoreCollectionDefinition? definition = null,
         string? vectorStoreName = null)
     {
         _client = client ?? throw new ArgumentNullException(nameof(client));
@@ -140,7 +141,7 @@
     /// <inheritdoc />
     public override async Task<TRecord?> GetAsync(
         string key,
         RecordRetrievalOptions? options = null,
         CancellationToken cancellationToken = default)
     {
         using var activity = StartActivity("get");
@@ -290,17 +291,17 @@
     public override IAsyncEnumerable<TRecord> GetAsync(
         Expression<Func<TRecord, bool>> filter,
         int top,
         FilteredRecordRetrievalOptions<TRecord>? options = null,
         CancellationToken cancellationToken = default)
     {
         throw new NotSupportedException("Expression-based filtering is not supported by OpenSearchVectorStoreCollection.");
     }
 
     /// <inheritdoc />
     public override async IAsyncEnumerable<VectorSearchResult<TRecord>> SearchAsync<TInput>(
         TInput searchValue,
         int top,
         VectorSearchOptions<TRecord>? options = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         using var activity = StartActivity("search");