221=> Task.FromResult(new ChatResponse(new ChatMessage(ChatRole.Assistant, "Hello from middleware")));

269=> Task.FromResult(new ChatResponse(new ChatMessage(ChatRole.Assistant, "Hello from middleware")));

74GetResponseAsync<T>(chatClient, new ChatMessage(ChatRole.User, chatMessage), options, useJsonSchemaResponseFormat, cancellationToken); 114GetResponseAsync<T>(chatClient, new ChatMessage(ChatRole.User, chatMessage), serializerOptions, options, useJsonSchemaResponseFormat, cancellationToken); 213promptAugmentation = new ChatMessage(ChatRole.User, $$"""

797return [new(ChatRole.Tool, contents)];

100return client.GetResponseAsync(new ChatMessage(ChatRole.User, chatMessage), options, cancellationToken); 140return client.GetStreamingResponseAsync(new ChatMessage(ChatRole.User, chatMessage), options, cancellationToken);

51new()

88list.Add(new(update.Role ?? ChatRole.Assistant, contentsList) 287message = new(ChatRole.Assistant, []);

18ChatMessage message = new(); 37ChatMessage message = new(ChatRole.Assistant, text); 65message = new(); 69message = new(ChatRole.User, (string?)null); 73message = new(ChatRole.User, (IList<AIContent>?)null); 77message = new ChatMessage(ChatRole.User, Array.Empty<AIContent>()); 94ChatMessage message = new(ChatRole.System, content); 129ChatMessage message = new() 145ChatMessage message = new(ChatRole.User, 171Assert.IsType<List<AIContent>>(new ChatMessage().Contents); 177ChatMessage message = new(); 197ChatMessage message = new(); 218ChatMessage message = new(); 239ChatMessage message = new(); 277var chatMessage = new ChatMessage(ChatRole.User, contents: items)

87ChatResponse original = new(new ChatMessage(ChatRole.Assistant, "the message")) 122ChatResponse response = new(new ChatMessage(ChatRole.Assistant, $"This is a test.{Environment.NewLine}It's multiple lines.")); 130ChatResponse response = new(new ChatMessage(new ChatRole("customRole"), "Text") { MessageId = "someMessage" }) 162new ChatMessage(new ChatRole("customRole"), "Text") 167new ChatMessage(new ChatRole("secondRole"), "Another message")

96ChatMessage message = new(ToChatRole(response.Role), response.Content)

145[new ChatMessage(ChatRole.User, "hello".Select(c => (AIContent)new TextContent(c.ToString())).ToList())] : 146[new ChatMessage(ChatRole.User, "hello")]; 218[new ChatMessage(ChatRole.User, "hello".Select(c => (AIContent)new TextContent(c.ToString())).ToList())] : 219[new ChatMessage(ChatRole.User, "hello")]; 986new(ChatRole.System, "You are a really nice friend."), 987new(ChatRole.User, "hello!"), 988new(ChatRole.Assistant, "hi, how are you?"), 989new(ChatRole.User, "i'm good. how are you?"), 990new(ChatRole.Assistant, [new FunctionCallContent("abcd123", "GetMood")]), 991new(ChatRole.Tool, [new FunctionResultContent("abcd123", "happy")]), 1067Assert.NotNull(await client.GetResponseAsync([new(ChatRole.User, 1132new(ChatRole.Assistant, (string?)null), 1133new(ChatRole.User, "hello!"),

51modelResponse: new ChatMessage(ChatRole.Assistant, modelResponse), 95userRequest: new ChatMessage(ChatRole.User, userRequest), 96modelResponse: new ChatMessage(ChatRole.Assistant, modelResponse),

333new ChatMessage 371new ChatMessage 405new ChatMessage 418new ChatMessage 454new ChatMessage 467new ChatMessage

9=> new ChatMessage(ChatRole.System, message); 12=> new ChatMessage(ChatRole.User, message); 15=> new ChatMessage(ChatRole.Assistant, message);

20var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "The quick brown fox jumps over the lazy dog.")); 36var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Completely unrelated sentence.")); 51var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Some text.")); 71var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, hypothesis)); 91var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, hypothesis)); 104var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, ""));

20var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "The quick brown fox jumps over the lazy dog.")); 36var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Completely unrelated sentence.")); 51var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Some text.")); 71var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, hypothesis)); 84var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, ""));

20var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "The quick brown fox jumps over the lazy dog.")); 36var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Completely unrelated sentence.")); 51var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Some text.")); 71var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, hypothesis)); 91var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, hypothesis)); 104var response = new ChatResponse(new ChatMessage(ChatRole.Assistant, ""));

119List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 199evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

127List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 191evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

124List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 176evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

111List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 179evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

129List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 301evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

173List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 318evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

124List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 205evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

268return [new ChatMessage(ChatRole.User, evaluationPrompt)];

143List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 230evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

266List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, systemPrompt)];

172List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)]; 223evaluationInstructions.Add(new ChatMessage(ChatRole.User, evaluationPrompt));

67new ChatMessage(ChatRole.System, SystemPrompt), 68new ChatMessage(ChatRole.User, fixPrompt)

36modelResponse: new ChatMessage(ChatRole.Assistant, modelResponse), 65userRequest: new ChatMessage(ChatRole.User, userRequest), 66modelResponse: new ChatMessage(ChatRole.Assistant, modelResponse),

34messages: [new ChatMessage(ChatRole.User, "User prompt")], 35modelResponse: new ChatResponse(new ChatMessage(ChatRole.Assistant, "LLM response")),

86messages: [new ChatMessage(ChatRole.User, "prompt")], 87modelResponse: new ChatResponse(new ChatMessage(ChatRole.Assistant, "response")), 177messages: [new ChatMessage(ChatRole.User, "prompt")], 178modelResponse: new ChatResponse(new ChatMessage(ChatRole.Assistant, "response")),

29new ChatMessage

66return new ChatResponse(new ChatMessage(ChatRole.Assistant, annotationResult))

142var payloadMessage = new ChatMessage(ChatRole.User, payload);

9=> new ChatMessage(ChatRole.System, message); 12=> new ChatMessage(ChatRole.User, message); 15=> new ChatMessage(ChatRole.Assistant, message);

69new(ChatRole.User, "Pick a city, any city"), 70new(ChatRole.Assistant, "Seattle"), 71new(ChatRole.User, "And another one"), 72new(ChatRole.Assistant, "Jakarta"), 73new(ChatRole.User, "What continent are they each in?"), 87new(ChatRole.System, []), 88new(ChatRole.User, []), 89new(ChatRole.Assistant, []), 90new(ChatRole.User, "What is 1 + 2? Reply with a single number."), 103new(ChatRole.User, "Quote, word for word, Neil Armstrong's famous words.") 161List<ChatMessage> history = [new(ChatRole.User, "Explain in 100 words how AI works")]; 184new(ChatRole.User, 202new(ChatRole.User, 232new(ChatRole.User, "What is the current secret number?") 299new(ChatRole.User, "What is the secret number for id foo?") 331new(ChatRole.User, "What is the secret number for John aged 19?") 361new(ChatRole.User, "Can you add bacon, lettuce, and tomatoes to Peter's shopping cart?") 640var message = new ChatMessage(ChatRole.User, "Pick a random number, uniformly distributed between 1 and 1000000"); 656var message = new ChatMessage(ChatRole.User, "Pick a random number, uniformly distributed between 1 and 1000000"); 681var message = new ChatMessage(ChatRole.User, "Pick a random number, uniformly distributed between 1 and 1000000"); 733var message = new ChatMessage(ChatRole.User, "What is the temperature?"); 772var message = new ChatMessage(ChatRole.User, "What is the temperature?"); 814var message = new ChatMessage(ChatRole.User, "What is the temperature?"); 842await chatClient.GetResponseAsync([new(ChatRole.User, "What's the biggest animal?")]); 941var response = await chatClient.GetResponseAsync([new(ChatRole.User, "What's the biggest animal?")]);

72chatMessagesList[messageIndex] = new ChatMessage(ChatRole.User, $"<tool_call_result>{toolCallResultJson}</tool_call_result>"); 77chatMessagesList[messageIndex] = new ChatMessage(ChatRole.Assistant, $"<tool_call_json>{toolCallJson}</tool_call_json>"); 186return new ChatMessage(ChatRole.System, prompt);

47new ChatMessage(ChatRole.User, "Hi there! Can you tell me about golden retrievers?"), 48new ChatMessage(ChatRole.Assistant, "Of course! Golden retrievers are known for their friendly and tolerant attitudes. They're great family pets and are very intelligent and easy to train."), 49new ChatMessage(ChatRole.User, "What kind of exercise do they need?"), 50new ChatMessage(ChatRole.Assistant, "Golden retrievers are quite active and need regular exercise. Daily walks, playtime, and activities like fetching or swimming are great for them."), 51new ChatMessage(ChatRole.User, "Are they good with kids?"),

169Microsoft.Extensions.AI.ChatMessage resultMessage = new()

447ChatMessage returnMessage = new()

133message ??= new(ChatRole.Assistant, (string?)null); 141message = new ChatMessage();

804new(ChatRole.System, "You are a really nice friend."), 805new(ChatRole.User, "hello!"), 806new(ChatRole.Assistant, "hi, how are you?"), 807new(ChatRole.User, "i'm good. how are you?"), 911new(ChatRole.System, [new TextContent("You are a really nice friend."), new TextContent("Really nice.")]), 912new(ChatRole.User, "hello!"), 1007new(ChatRole.System, "You are a really nice friend."), 1008new(ChatRole.User, "hello!"), 1009new(ChatRole.Assistant, (string?)null), 1010new(ChatRole.User, "i'm good. how are you?"), 1449new(ChatRole.System, "You are a really nice friend."), 1450new(ChatRole.User, "hello!"), 1451new(ChatRole.Assistant, 1457new (ChatRole.Tool, 1462new(ChatRole.Assistant, "You are great."), 1463new(ChatRole.User, "Thanks!"), 1569new(ChatRole.User,

90new(ChatRole.System, "You are a helpful assistant."), 91new(ChatRole.User, "Hello"), 92new(ChatRole.Assistant, 101new(ChatRole.Tool, [new FunctionResultContent("callid123", "theresult")]), 102new(ChatRole.Assistant, "The answer is 42."), 156new(ChatRole.System, "You are a helpful assistant."), 157new(ChatRole.User, "Hello"), 158new(ChatRole.Assistant, 167new(ChatRole.Tool, [new FunctionResultContent("callid123", "theresult")]), 168new(ChatRole.Assistant, "The answer is 42."), 335new(ChatRole.Assistant, "Hi there!") 361new(ChatRole.Assistant, 397var chatResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, 436var chatResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Hello")); 466var chatResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, 511var chatResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, "Test")) 534var chatResponse = new ChatResponse(new ChatMessage(inputRole, "Test"));

81var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 142var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 201var expectedResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, "This is not valid JSON")); 207var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 220var expectedResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, "null")); 226var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 239var expectedResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, [new UriContent("https://example.com", "image/*")])); 245var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 273var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 301var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 326var expectedResponse = new ChatResponse(new ChatMessage(ChatRole.Assistant, JsonSerializer.Serialize(expectedResult, jso))); 369var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 397var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") };

48new ChatMessage(new ChatRole("fakeRole"), "This is some content") 140return new ChatResponse(new ChatMessage(ChatRole.Assistant, "Hello")); 184var input = new ChatMessage(ChatRole.User, "abc"); 214return new ChatResponse(new ChatMessage(ChatRole.Assistant, "A good result")); 223var input = new ChatMessage(ChatRole.User, "abc"); 494var input = new ChatMessage(ChatRole.User, "abc"); 532var input = new ChatMessage(ChatRole.User, "abc"); 559return new(new ChatMessage(ChatRole.Assistant, options!.AdditionalProperties!["someKey"]!.ToString())); 610return new(new ChatMessage(ChatRole.Assistant, innerCallCount.ToString())); 656return new(new ChatMessage(ChatRole.Assistant, options!.AdditionalProperties!["someKey"]!.ToString())); 685new ChatMessage(new ChatRole("fakeRole"), 744new ChatMessage(ChatRole.Assistant, [new TextContent("Hey")])));

93new ChatMessage(ChatRole.User, "hello"), 94new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1")]), 95new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1")]), 96new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId2", "Func2", arguments: new Dictionary<string, object?> { { "i", 42 } })]), 97new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 2: 42")]), 98new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId3", "VoidReturn", arguments: new Dictionary<string, object?> { { "i", 43 } })]), 99new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId3", result: "Success: Function completed.")]), 100new ChatMessage(ChatRole.Assistant, "world"), 127new ChatMessage(ChatRole.User, "hello"), 128new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1")]), 129new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1")]), 130new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId2", "Func2", arguments: new Dictionary<string, object?> { { "i", 42 } })]), 131new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 2: 42")]), 132new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId3", "VoidReturn", arguments: new Dictionary<string, object?> { { "i", 43 } })]), 133new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId3", result: "Success: Function completed.")]), 134new ChatMessage(ChatRole.Assistant, "world"), 160new ChatMessage(ChatRole.User, "hello"), 161new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1")]), 162new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1")]), 163new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId2", "Func2", arguments: new Dictionary<string, object?> { { "i", 42 } })]), 164new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 2: 42")]), 165new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId3", "VoidReturn", arguments: new Dictionary<string, object?> { { "i", 43 } })]), 166new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId3", result: "Success: Function completed.")]), 167new ChatMessage(ChatRole.Assistant, "world"), 191new ChatMessage(ChatRole.User, "hello"), 192new ChatMessage(ChatRole.Assistant, 198new ChatMessage(ChatRole.Tool, 204new ChatMessage(ChatRole.Assistant, 209new ChatMessage(ChatRole.Tool, 214new ChatMessage(ChatRole.Assistant, "world"), 251new ChatMessage(ChatRole.User, "hello"), 252new ChatMessage(ChatRole.Assistant, 257new ChatMessage(ChatRole.Tool, 262new ChatMessage(ChatRole.Assistant, "done"), 295new ChatMessage(ChatRole.User, "hello"), 296new ChatMessage(ChatRole.Assistant, 301new ChatMessage(ChatRole.Tool, 306new ChatMessage(ChatRole.Assistant, "done"), 329new ChatMessage(ChatRole.User, "hello"), 330new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1")]), 331new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1 from delegate")]), 332new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId2", "Func2", arguments: new Dictionary<string, object?> { { "i", 42 } })]), 333new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 2: 42 from delegate")]), 334new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId3", "VoidReturn", arguments: new Dictionary<string, object?> { { "i", 43 } })]), 335new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId3", result: "Success: Function completed.")]), 336new ChatMessage(ChatRole.Assistant, "world"), 378new ChatMessage(ChatRole.User, "hello"), 379new ChatMessage(ChatRole.Assistant, [new FunctionCallContent($"callId0", "VoidReturn")]), 386plan.Add(new ChatMessage(ChatRole.Tool, [new FunctionResultContent($"callId{i}", result: "Success: Function completed.")])); 387plan.Add(new ChatMessage(ChatRole.Assistant, [new FunctionCallContent($"callId{(i + 1)}", "VoidReturn")])); 427new ChatMessage(ChatRole.User, "hello"), 505new ChatMessage(ChatRole.User, "hello"), 522var assistantMessage = new ChatMessage(ChatRole.Assistant, []); 523var toolMessage = new ChatMessage(ChatRole.Tool, []); 552new ChatMessage(ChatRole.User, "hello"), 553new ChatMessage(ChatRole.Assistant, [new TextContent("extra"), new FunctionCallContent("callId1", "Func1"), new TextContent("stuff")]), 554new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 1")]), 555new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId2", "Func2", arguments: new Dictionary<string, object?> { { "i", 42 } })]), 556new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 2: 42")]), 557new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId3", "VoidReturn", arguments: new Dictionary<string, object?> { { "i", 43 } }), new TextContent("more")]), 558new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId3", result: "Success: Function completed.")]), 559new ChatMessage(ChatRole.Assistant, "world"), 589new ChatMessage(ChatRole.User, "hello"), 590new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1")]), 591new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: detailedErrors ? "Error: Function failed. Exception: Oh no!" : "Error: Function failed.")]), 592new ChatMessage(ChatRole.Assistant, "world"), 611new ChatMessage(ChatRole.User, "hello"), 612new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1", new Dictionary<string, object?> { ["arg1"] = "value1" })]), 613new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1")]), 614new ChatMessage(ChatRole.Assistant, "world"), 667new ChatMessage(ChatRole.User, "hello"), 668new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1", new Dictionary<string, object?> { ["arg1"] = "value1" })]), 669new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1")]), 670new ChatMessage(ChatRole.Assistant, "world"), 728new(ChatRole.User, "Hello"), 786new(ChatRole.User, "Hello"), 796new(ChatRole.Assistant, [new FunctionCallContent($"callId{chatContents.Count()}", "Func1")]) : 797new(ChatRole.Assistant, "The answer is 42."); 844new ChatMessage(ChatRole.User, "hello"), 845new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1", new Dictionary<string, object?> { ["i"] = 41 })]), 846new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 41")]), 847new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId2", "Func1", new Dictionary<string, object?> { ["i"] = 42 })]), 848new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId2", result: "Result 42")]), 855new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId3", "Func1", new Dictionary<string, object?> { ["i"] = 43 })]), 856new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId3", result: "Result 43")]), 857new ChatMessage(ChatRole.Assistant, "world"), 920var message = new ChatMessage(ChatRole.Assistant, resultContents); 928List<ChatMessage> messages = [new(ChatRole.User, "hello")]; 963return new ChatResponse(new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId-abc", "Func1")])) 971return new ChatResponse(new ChatMessage(ChatRole.Assistant, "done!")); 1000new ChatMessage(ChatRole.User, "hello"), 1001new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("callId1", "Func1", new Dictionary<string, object?> { ["arg1"] = "value1" })]), 1002new ChatMessage(ChatRole.Tool, [new FunctionResultContent("callId1", result: "Result 1")]), 1003new ChatMessage(ChatRole.Assistant, "world"), 1029new ChatMessage(ChatRole.User, "hello"), 1030new ChatMessage(ChatRole.Assistant, [ 1034new ChatMessage(ChatRole.Tool, 1039new ChatMessage(ChatRole.Assistant, "world"), 1103var message = new ChatMessage(ChatRole.Assistant, [.. plan[contents.Count()].Contents]) 1197ChatMessage message = new(ChatRole.Assistant, [.. plan[contents.Count()].Contents])

59return Task.FromResult(new ChatResponse(new ChatMessage(ChatRole.Assistant, "blue whale"))); 69[new(ChatRole.User, "What's the biggest animal?")], 118[new(ChatRole.User, "What's the biggest animal?")],

41return new ChatResponse(new ChatMessage(ChatRole.Assistant, "The blue whale, I think.")) 110new(ChatRole.System, "You are a close friend."), 111new(ChatRole.User, "Hey!"), 112new(ChatRole.Assistant, [new FunctionCallContent("12345", "GetPersonName")]), 113new(ChatRole.Tool, [new FunctionResultContent("12345", "John")]), 114new(ChatRole.Assistant, "Hey John, what's up?"), 115new(ChatRole.User, "What's the biggest animal?")

42return Task.FromResult(new ChatResponse(new ChatMessage(ChatRole.Assistant, "hello"))); 91return Task.FromResult(new ChatResponse(new ChatMessage(ChatRole.Assistant, "hello"))); 184return Task.FromResult(new ChatResponse(new ChatMessage(ChatRole.Assistant, "non-streaming hello")));

47var chatMessage = new ChatMessage(ChatRole.Assistant, output);

86new ChatMessage(ChatRole.System, "You are a helpful contoso assistant"), 87new ChatMessage(ChatRole.User, "What is contoso"), 93new ChatMessage(ChatRole.Assistant, "Contoso is a company"),

134new ChatMessage(ChatRole.System, "You are a helpful AI assistant."), 135new ChatMessage(ChatRole.User, "Hello?"), 136new ChatMessage(ChatRole.Assistant, "World!"),

107new ChatMessage(ChatRole.System, "You are a helpful contoso assistant"), 108new ChatMessage(ChatRole.User, data.input), 111var assistantMessage = new ChatMessage(ChatRole.Assistant, data.output);

47var chatMessage = new ChatMessage(ChatRole.User, task);

37var chatMessage = new ChatMessage(ChatRole.User, task);

220static Task<ChatResponse> TestMiddleware(IEnumerable<ChatMessage> list, ChatOptions? options, IChatClient client, CancellationToken token)

268private static Task<ChatResponse> TestMiddleware(IEnumerable<ChatMessage> list, ChatOptions? options, IChatClient client, CancellationToken token)

23private readonly Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, Task<ChatResponse>>? _getResponseFunc; 31private readonly Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? _getStreamingResponseFunc; 34private readonly Func<IEnumerable<ChatMessage>, ChatOptions?, Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, Task>, CancellationToken, Task>? _sharedFunc; 53Func<IEnumerable<ChatMessage>, ChatOptions?, Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, Task>, CancellationToken, Task> sharedFunc) 79Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, Task<ChatResponse>>? getResponseFunc, 80Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? getStreamingResponseFunc) 91IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 100IEnumerable<ChatMessage> messages, ChatOptions? options, CancellationToken cancellationToken) 130IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default)

50IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 60IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 78IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 88IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 153protected abstract string GetCacheKey(IEnumerable<ChatMessage> messages, ChatOptions? options, params ReadOnlySpan<object?> additionalValues); 212protected virtual bool EnableCaching(IEnumerable<ChatMessage> messages, ChatOptions? options)

108public ChatClientBuilder Use(Func<IEnumerable<ChatMessage>, ChatOptions?, Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, Task>, CancellationToken, Task> sharedFunc) 143Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, Task<ChatResponse>>? getResponseFunc, 144Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? getStreamingResponseFunc)

50IEnumerable<ChatMessage> messages, 89ChatMessage chatMessage, 130ChatMessage chatMessage, 152IEnumerable<ChatMessage> messages, 193ChatMessage? promptAugmentation = null;

38IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) => 43IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default)

26/// the object models used by <see cref="ChatMessage"/>, <see cref="ChatOptions"/>, <see cref="ChatResponse"/>, <see cref="ChatResponseUpdate"/>, 28/// <see cref="ChatMessage.RawRepresentation"/> will be ignored, and <see cref="object"/> values in <see cref="ChatMessage.AdditionalProperties"/> 140protected override string GetCacheKey(IEnumerable<ChatMessage> messages, ChatOptions? options, params ReadOnlySpan<object?> additionalValues)

29/// the object models used by <see cref="ChatMessage"/>, <see cref="ChatOptions"/>, <see cref="ChatResponse"/>, <see cref="ChatResponseUpdate"/>, 31/// <see cref="ChatMessage.RawRepresentation"/> will be ignored, and <see cref="object"/> values in <see cref="ChatMessage.AdditionalProperties"/>

21private IList<ChatMessage> _messages = Array.Empty<ChatMessage>(); 59public IList<ChatMessage> Messages

229IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 239List<ChatMessage> originalMessages = [.. messages]; 242List<ChatMessage>? augmentedHistory = null; // the actual history of messages sent on turns other than the first 244List<ChatMessage>? responseMessages = null; // tracked list of messages, across multiple turns, to be used for the final response 324IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 335List<ChatMessage> originalMessages = [.. messages]; 338List<ChatMessage>? augmentedHistory = null; // the actual history of messages sent on turns other than the first 340List<ChatMessage>? responseMessages = null; // tracked list of messages, across multiple turns, to be used in fallback cases to reconstitute history 407foreach (var message in modeAndMessages.MessagesAdded) 462IEnumerable<ChatMessage> originalMessages, 463ref IEnumerable<ChatMessage> messages, 464[NotNull] ref List<ChatMessage>? augmentedHistory, 466List<ChatMessage> allTurnsResponseMessages, 518IList<ChatMessage> messages, [NotNullWhen(true)] ref List<FunctionCallContent>? functionCalls) 585private async Task<(bool ShouldTerminate, int NewConsecutiveErrorCount, IList<ChatMessage> MessagesAdded)> ProcessFunctionCallsAsync( 586List<ChatMessage> messages, ChatOptions? options, List<FunctionCallContent> functionCallContents, int iteration, int consecutiveErrorCount, 603IList<ChatMessage> addedMessages = CreateResponseMessages([result]); 648IList<ChatMessage> addedMessages = CreateResponseMessages(results.ToArray()); 664private void UpdateConsecutiveErrorCountOrThrow(IList<ChatMessage> added, ref int consecutiveErrorCount) 696private void ThrowIfNoFunctionResultsAdded(IList<ChatMessage>? messages) 715List<ChatMessage> messages, ChatOptions? options, List<FunctionCallContent> callContents, 788protected virtual IList<ChatMessage> CreateResponseMessages(

55IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 101IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default)

133IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 164IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 454private void LogChatMessages(IEnumerable<ChatMessage> messages) 461foreach (ChatMessage message in messages)

113ChatMessage chatMessage, 153ChatMessage chatMessage,

20/// <summary>Initializes a new instance of the <see cref="ChatMessage"/> class.</summary> 27/// <summary>Initializes a new instance of the <see cref="ChatMessage"/> class.</summary> 35/// <summary>Initializes a new instance of the <see cref="ChatMessage"/> class.</summary> 44/// <summary>Clones the <see cref="ChatMessage"/> to a new <see cref="ChatMessage"/> instance.</summary> 50public ChatMessage Clone() => 95/// If a <see cref="ChatMessage"/> is created to represent some underlying object from another object

130/// like the enumerable of <see cref="ChatMessage"/>s, therefore, it is <b>strongly recommended</b> to not return shared instances

23private IList<ChatMessage>? _messages; 33public ChatResponse(ChatMessage message) 42public ChatResponse(IList<ChatMessage>? messages) 49public IList<ChatMessage> Messages 51get => _messages ??= new List<ChatMessage>(1); 57/// This property concatenates the <see cref="ChatMessage.Text"/> of all <see cref="ChatMessage"/> 130ChatMessage message = _messages![i];

28public static void AddMessages(this IList<ChatMessage> list, ChatResponse response) 33if (list is List<ChatMessage> listConcrete) 39foreach (var message in response.Messages) 46/// <summary>Converts the <paramref name="updates"/> into <see cref="ChatMessage"/> instances and adds them to <paramref name="list"/>.</summary> 52/// As part of combining <paramref name="updates"/> into a series of <see cref="ChatMessage"/> instances, the 57public static void AddMessages(this IList<ChatMessage> list, IEnumerable<ChatResponseUpdate> updates) 70/// <summary>Converts the <paramref name="update"/> into a <see cref="ChatMessage"/> instance and adds it to <paramref name="list"/>.</summary> 78/// no <see cref="ChatMessage"/> will be added to the <paramref name="list"/>. 80public static void AddMessages(this IList<ChatMessage> list, ChatResponseUpdate update, Func<AIContent, bool>? filter = null) 98/// <summary>Converts the <paramref name="updates"/> into <see cref="ChatMessage"/> instances and adds them to <paramref name="list"/>.</summary> 106/// As part of combining <paramref name="updates"/> into a series of <see cref="ChatMessage"/> instances, tne 112this IList<ChatMessage> list, IAsyncEnumerable<ChatResponseUpdate> updates, CancellationToken cancellationToken = default) 120IList<ChatMessage> list, IAsyncEnumerable<ChatResponseUpdate> updates, CancellationToken cancellationToken) => 130/// <see cref="ChatMessage"/> instances. This includes using <see cref="ChatResponseUpdate.MessageId"/> to determine 158/// <see cref="ChatMessage"/> instances. This includes using <see cref="ChatResponseUpdate.MessageId"/> to determine 272ChatMessage message;

19/// <see cref="ChatResponse"/> and <see cref="ChatMessage"/> in streaming output. 113/// groups <see cref="ChatResponseUpdate"/> instances into <see cref="ChatMessage"/> instances.

43IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) => 48IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) =>

43IEnumerable<ChatMessage> messages, 55IEnumerable<ChatMessage> messages,

62/// <summary>Concatenates the <see cref="ChatMessage.Text"/> of all <see cref="ChatMessage"/> instances in the list.</summary> 64public static string ConcatText(this IList<ChatMessage> messages)

73[JsonSerializable(typeof(IList<ChatMessage>))] 74[JsonSerializable(typeof(IEnumerable<ChatMessage>))] 75[JsonSerializable(typeof(ChatMessage[]))]

82_ = ChatClientExtensions.GetResponseAsync(new TestChatClient(), (ChatMessage)null!); 96_ = ChatClientExtensions.GetStreamingResponseAsync(new TestChatClient(), (ChatMessage)null!); 111ChatMessage m = Assert.Single(messages); 138ChatMessage m = Assert.Single(messages);

18ChatMessage message = new(); 37ChatMessage message = new(ChatRole.Assistant, text); 63ChatMessage message; 94ChatMessage message = new(ChatRole.System, content); 129ChatMessage message = new() 145ChatMessage message = new(ChatRole.User, 177ChatMessage message = new(); 197ChatMessage message = new(); 218ChatMessage message = new(); 239ChatMessage message = new(); 277var chatMessage = new ChatMessage(ChatRole.User, contents: items) 285var deserializedMessage = JsonSerializer.Deserialize<ChatMessage>(chatMessageJson, TestJsonSerializerContext.Default.Options)!;

23response = new((IList<ChatMessage>?)null); 27Assert.Throws<ArgumentNullException>("message", () => new ChatResponse((ChatMessage)null!)); 37List<ChatMessage> messages = [];

54ChatMessage message = response.Messages.Single(); 103ChatMessage message1 = response.Messages[0]; 111ChatMessage message2 = response.Messages[1]; 119ChatMessage message3 = response.Messages[2]; 194ChatMessage message = response.Messages.Single(); 233ChatMessage message = Assert.Single(response.Messages); 271ChatMessage message = Assert.Single(response.Messages);

24var expectedChatContents = new List<ChatMessage>(); 56var expectedChatContents = new List<ChatMessage>();

20public Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, Task<ChatResponse>>? GetResponseAsyncCallback { get; set; } 22public Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? GetStreamingResponseAsyncCallback { get; set; } 29public Task<ChatResponse> GetResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 32public IAsyncEnumerable<ChatResponseUpdate> GetStreamingResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default)

1006Assert.Throws<ArgumentException>("contentType", () => options.AddAIContentType(typeof(ChatMessage), "discriminator"));

86IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 96ChatMessage message = new(ToChatRole(response.Role), response.Content) 142IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 286private ChatCompletionsOptions CreateAzureAIOptions(IEnumerable<ChatMessage> chatContents, ChatOptions? options) => 294private ChatCompletionsOptions ToAzureAIOptions(IEnumerable<ChatMessage> chatContents, ChatOptions? options) 426private static IEnumerable<ChatRequestMessage> ToAzureAIInferenceChatMessages(IEnumerable<ChatMessage> inputs, ChatOptions? options) 436foreach (ChatMessage input in inputs)

144List<ChatMessage> messages = multiContent ? 217List<ChatMessage> messages = multiContent ? 984List<ChatMessage> messages = 1130List<ChatMessage> messages =

13/// Extension methods for <see cref="ChatMessage"/>. 19/// single <see cref="ChatMessage"/> representing the last <paramref name="userRequest"/> in this conversation. 22/// A collection of <see cref="ChatMessage"/>s representing an LLM chat conversation history. 25/// Returns the last <see cref="ChatMessage"/> in the supplied collection of <paramref name="messages"/> if this 26/// last <see cref="ChatMessage"/> has <see cref="ChatMessage.Role"/> set to <see cref="ChatRole.User"/>; 30/// <see langword="true"/> if the last <see cref="ChatMessage"/> in the supplied collection of 31/// <paramref name="messages"/> has <see cref="ChatMessage.Role"/> set to <see cref="ChatRole.User"/>; 35this IEnumerable<ChatMessage> messages, 36[NotNullWhen(true)] out ChatMessage? userRequest) 39messages.LastOrDefault() is ChatMessage lastMessage && lastMessage.Role == ChatRole.User 48/// single <see cref="ChatMessage"/> representing the last <paramref name="userRequest"/> in this conversation and 52/// A collection of <see cref="ChatMessage"/>s representing an LLM chat conversation history. 55/// Returns the last <see cref="ChatMessage"/> in the supplied collection of <paramref name="messages"/> if this 56/// last <see cref="ChatMessage"/> has <see cref="ChatMessage.Role"/> set to <see cref="ChatRole.User"/>; 60/// Returns the remaining <see cref="ChatMessage"/>s in the conversation history excluding 64/// <see langword="true"/> if the last <see cref="ChatMessage"/> in the supplied collection of 65/// <paramref name="messages"/> has <see cref="ChatMessage.Role"/> set to <see cref="ChatRole.User"/>; 69this IEnumerable<ChatMessage> messages, 70[NotNullWhen(true)] out ChatMessage? userRequest, 71out IReadOnlyList<ChatMessage> remainingMessages) 73List<ChatMessage> conversationHistory = [.. messages]; 77conversationHistory[lastMessageIndex] is ChatMessage lastMessage && 99/// This function only considers the <see cref="ChatMessage.Text"/> and ignores any <see cref="AIContent"/>s 100/// (present within the <see cref="ChatMessage.Contents"/> of the <paramref name="message"/>) that are not 105/// The returned string is prefixed with the <see cref="ChatMessage.Role"/> and 106/// <see cref="ChatMessage.AuthorName"/> (if available). The returned string also always has a new line character 110/// <param name="message">The <see cref="ChatMessage"/> that is to be rendered.</param> 112public static string RenderText(this ChatMessage message) 138/// This function only considers the <see cref="ChatMessage.Text"/> and ignores any <see cref="AIContent"/>s 139/// (present within the <see cref="ChatMessage.Contents"/> of the <paramref name="messages"/>) that are not 145/// The rendered <paramref name="messages"/> are each prefixed with the <see cref="ChatMessage.Role"/> and 146/// <see cref="ChatMessage.AuthorName"/> (if available) in the returned string. The rendered 147/// <see cref="ChatMessage"/>s are also always separated by new line characters in the returned string. 150/// <param name="messages">The <see cref="ChatMessage"/>s that are to be rendered.</param> 152public static string RenderText(this IEnumerable<ChatMessage> messages) 157foreach (ChatMessage message in messages)

21/// (present within the <see cref="ChatMessage.Contents"/> of the <see cref="ChatResponse.Messages"/>) that are not 27/// The rendered <see cref="ChatResponse.Messages"/> are each prefixed with the <see cref="ChatMessage.Role"/> and 28/// <see cref="ChatMessage.AuthorName"/> (if available) in the returned string. The rendered

103IEnumerable<ChatMessage> messages, 128IEnumerable<ChatMessage> messages,

23/// <see cref="IEvaluator.EvaluateAsync(IEnumerable{ChatMessage}, ChatResponse, ChatConfiguration?, IEnumerable{EvaluationContext}?, CancellationToken)"/>.

131ChatMessage modelResponse, 219ChatMessage userRequest, 220ChatMessage modelResponse, 264ChatMessage userRequest,

58IEnumerable<ChatMessage> messages,

93(IEnumerable<ChatMessage> messages, ChatResponse response) = 116(IEnumerable<ChatMessage> messages, ChatResponse response) = 149(IEnumerable<ChatMessage> messages, ChatResponse response) = 173(IEnumerable<ChatMessage> messages, ChatResponse response) = 204private static async Task<(IEnumerable<ChatMessage> messages, ChatResponse response)> 207List<ChatMessage> messages = 217private static async Task<(IEnumerable<ChatMessage> messages, ChatResponse response)> 220List<ChatMessage> messages =

91var messages = new List<ChatMessage>(); 131var messages = new List<ChatMessage>(); 168var messages = new List<ChatMessage>(); 203var messages = new List<ChatMessage>();

21private static readonly ChatMessage _testResponse = "Test response".ToAssistantMessage();

181var messages = new List<ChatMessage>(); 259var messages = new List<ChatMessage>(); 332var question = 341ChatMessage answer = "The image depicts a logo for Microsoft Corporation.".ToAssistantMessage(); 368ChatMessage question = "Can you show me an image pertaining to DotNet?".ToUserMessage(); 370var answer = 404var question1 = 413ChatMessage answer1 = "The image depicts a logo for DotNet.".ToAssistantMessage(); 415ChatMessage question2 = "Can you show me an image pertaining to Microsoft Copilot?".ToUserMessage(); 417var answer2 = 426ChatMessage[] messages = [question1, answer1, question2]; 453var question1 = 462ChatMessage answer1 = "The image depicts a logo for Microsoft Corporation.".ToAssistantMessage(); 464ChatMessage question2 = "Can you show me an image pertaining to Microsoft Copilot?".ToUserMessage(); 466var answer2 = 475ChatMessage question3 = 480ChatMessage answer3 = 488ChatMessage[] messages = [question1, answer1, question2, answer2, question3]; 544ChatMessage context1 = 549ChatMessage completion1 = 554ChatMessage context2 = 559ChatMessage completion2 = 564ChatMessage[] messages = [context1, completion1, context2]; 587var messages = new List<ChatMessage>();

8internal static ChatMessage ToSystemMessage(this string message) 11internal static ChatMessage ToUserMessage(this string message) 14internal static ChatMessage ToAssistantMessage(this string message)

27IEnumerable<ChatMessage> messages,

43IEnumerable<ChatMessage> messages,

43IEnumerable<ChatMessage> messages,

43IEnumerable<ChatMessage> messages,

13internal static string RenderAsJson(this IEnumerable<ChatMessage> messages, JsonSerializerOptions? options = null) 19foreach (ChatMessage message in messages) 24AIJsonUtilities.DefaultOptions.GetTypeInfo(typeof(ChatMessage)));

68IEnumerable<ChatMessage> messages, 89_ = messages.TryGetUserRequest(out ChatMessage? userRequest); 91List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(userRequest, modelResponse); 105private static List<ChatMessage> GetEvaluationInstructions(ChatMessage? userRequest, ChatResponse modelResponse) 119List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

65IEnumerable<ChatMessage> messages, 96List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(modelResponse, context); 111private static List<ChatMessage> GetEvaluationInstructions( 127List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

64IEnumerable<ChatMessage> messages, 95_ = messages.TryGetUserRequest(out ChatMessage? userRequest); 97List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(userRequest, modelResponse, context); 112private static List<ChatMessage> GetEvaluationInstructions( 113ChatMessage? userRequest, 124List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

62IEnumerable<ChatMessage> messages, 83List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(modelResponse); 97private static List<ChatMessage> GetEvaluationInstructions(ChatResponse modelResponse) 111List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

63IEnumerable<ChatMessage> messages, 94_ = messages.TryGetUserRequest(out ChatMessage? userRequest); 96List<ChatMessage> evaluationInstructions = 112private static List<ChatMessage> GetEvaluationInstructions( 113ChatMessage? userRequest, 129List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

76IEnumerable<ChatMessage> messages, 141List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(messages, modelResponse, context); 165private static List<ChatMessage> GetEvaluationInstructions( 166IEnumerable<ChatMessage> messages, 173List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

66IEnumerable<ChatMessage> messages, 79if (!messages.TryGetUserRequest(out ChatMessage? userRequest) || string.IsNullOrWhiteSpace(userRequest.Text)) 96List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(userRequest, modelResponse); 110private static List<ChatMessage> GetEvaluationInstructions(ChatMessage userRequest, ChatResponse modelResponse) 124List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

79IEnumerable<ChatMessage> messages, 98out ChatMessage? userRequest, 99out IReadOnlyList<ChatMessage> conversationHistory) || 117List<ChatMessage> evaluationInstructions = 137private static List<ChatMessage> GetEvaluationInstructions( 138ChatMessage userRequest, 140IEnumerable<ChatMessage> conversationHistory)

72IEnumerable<ChatMessage> messages, 84if (!messages.TryGetUserRequest(out ChatMessage? userRequest) || string.IsNullOrWhiteSpace(userRequest.Text)) 112List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(userRequest, context); 127private static List<ChatMessage> GetEvaluationInstructions( 128ChatMessage userRequest, 143List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

75IEnumerable<ChatMessage> messages, 140List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(messages, modelResponse, context); 160private static List<ChatMessage> GetEvaluationInstructions( 161IEnumerable<ChatMessage> messages, 266List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, systemPrompt)];

77IEnumerable<ChatMessage> messages, 140List<ChatMessage> evaluationInstructions = GetEvaluationInstructions(messages, modelResponse, context); 155private static List<ChatMessage> GetEvaluationInstructions( 156IEnumerable<ChatMessage> messages, 172List<ChatMessage> evaluationInstructions = [new ChatMessage(ChatRole.System, SystemPrompt)];

65var messages = new List<ChatMessage>

146IEnumerable<ChatMessage> messages,

86ChatMessage modelResponse, 143ChatMessage userRequest, 144ChatMessage modelResponse, 173ChatMessage userRequest,

20/// <see cref="ScenarioRun.EvaluateAsync(IEnumerable{ChatMessage}, ChatResponse, IEnumerable{Microsoft.Extensions.AI.Evaluation.EvaluationContext}?, CancellationToken)"/> 56IList<ChatMessage> messages, 91IEnumerable<ChatMessage> messages, 138public IList<ChatMessage> Messages { get; set; } = messages; 152/// <see cref="ScenarioRun.EvaluateAsync(IEnumerable{ChatMessage}, ChatResponse, IEnumerable{Microsoft.Extensions.AI.Evaluation.EvaluationContext}?, CancellationToken)"/>

23IEnumerable<ChatMessage> messages, 52IEnumerable<ChatMessage> messages,

291private class ChatMessageComparer : IEqualityComparer<ChatMessage> 295public bool Equals(ChatMessage? x, ChatMessage? y) 298public int GetHashCode(ChatMessage obj)

27Messages = new List<ChatMessage>

11internal static bool ContainsImageWithSupportedFormat(this ChatMessage message) 14internal static bool ContainsImageWithSupportedFormat(this IEnumerable<ChatMessage> conversation)

47IEnumerable<ChatMessage> messages,

49IEnumerable<ChatMessage> messages,

50IEnumerable<ChatMessage> messages, 83IEnumerable<ChatMessage> messages, 140private static void ValidateSingleMessage(IEnumerable<ChatMessage> messages)

44IEnumerable<ChatMessage> messages, 90IEnumerable<ChatMessage> messages, 109IEnumerable<ChatMessage> conversation = [.. messages, .. modelResponse.Messages]; 142var payloadMessage = new ChatMessage(ChatRole.User, payload);

17IEnumerable<ChatMessage> conversation, 80IEnumerable<ChatMessage> conversation, 92List<Dictionary<string, ChatMessage>> turns; 112if (turn.TryGetValue("question", out ChatMessage? question)) 117if (turn.TryGetValue("answer", out ChatMessage? answer)) 168IEnumerable<ChatMessage> conversation, 186List<Dictionary<string, ChatMessage>> turns; 206if (turn.TryGetValue("question", out ChatMessage? question)) 211if (turn.TryGetValue("answer", out ChatMessage? answer)) 250IEnumerable<ChatMessage> conversation, 264List<Dictionary<string, ChatMessage>> turns; 278IEnumerable<JsonObject> GetMessages(Dictionary<string, ChatMessage> turn, int turnIndex) 282if (turn.TryGetValue("question", out ChatMessage? question)) 293if (turn.TryGetValue("answer", out ChatMessage? answer)) 318IEnumerable<JsonObject> GetContents(ChatMessage message) 388(List<Dictionary<string, ChatMessage>> turns, 392IEnumerable<ChatMessage> conversation, 399List<Dictionary<string, ChatMessage>> turns = []; 400Dictionary<string, ChatMessage> currentTurn = []; 420foreach (ChatMessage message in conversation) 454void ValidateContents(ChatMessage message) 482foreach (var message in turn.Values)

48IEnumerable<ChatMessage> messages,

67IEnumerable<ChatMessage> messages,

52IEnumerable<ChatMessage> messages,

8internal static ChatMessage ToSystemMessage(this string message) 11internal static ChatMessage ToUserMessage(this string message) 14internal static ChatMessage ToAssistantMessage(this string message)

20IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 27IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default)

101IList<ChatMessage> chatHistory = 161List<ChatMessage> history = [new(ChatRole.User, "Explain in 100 words how AI works")]; 230List<ChatMessage> messages = 297List<ChatMessage> messages = 329List<ChatMessage> messages = 359List<ChatMessage> messages = 640var message = new ChatMessage(ChatRole.User, "Pick a random number, uniformly distributed between 1 and 1000000"); 656var message = new ChatMessage(ChatRole.User, "Pick a random number, uniformly distributed between 1 and 1000000"); 681var message = new ChatMessage(ChatRole.User, "Pick a random number, uniformly distributed between 1 and 1000000"); 733var message = new ChatMessage(ChatRole.User, "What is the temperature?"); 772var message = new ChatMessage(ChatRole.User, "What is the temperature?"); 814var message = new ChatMessage(ChatRole.User, "What is the temperature?");

43IEnumerable<ChatMessage> chatMessages, ChatOptions? options = null, CancellationToken cancellationToken = default) 49List<ChatMessage> chatMessagesList = [CreateToolPrompt(options.Tools), .. chatMessages.Select(m => m.Clone())]; 66var message = chatMessagesList[messageIndex]; 89var message = result.Messages.First(); 138IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 167private static ChatMessage CreateToolPrompt(IList<AITool> tools)

45List<ChatMessage> messages = 76IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 85IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 103Task<IList<ChatMessage>> ReduceAsync(IEnumerable<ChatMessage> messages, CancellationToken cancellationToken); 130public async Task<IList<ChatMessage>> ReduceAsync( 131IEnumerable<ChatMessage> messages, CancellationToken cancellationToken) 135List<ChatMessage> list = messages.ToList(); 155private int CountTokens(ChatMessage message)

20public Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, Task<ChatResponse>>? GetResponseAsyncCallback { get; set; } 22public Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? GetStreamingResponseAsyncCallback { get; set; } 29public Task<ChatResponse> GetResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 32public IAsyncEnumerable<ChatResponseUpdate> GetStreamingResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default)

110IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default)

33public static IEnumerable<ChatMessage> AsOpenAIChatMessages(this IEnumerable<Microsoft.Extensions.AI.ChatMessage> messages, ChatOptions? options = null) => 49var lastMessage = response.Messages.LastOrDefault(); 159/// <summary>Creates a sequence of <see cref="Microsoft.Extensions.AI.ChatMessage"/> instances from the specified input messages.</summary> 163public static IEnumerable<Microsoft.Extensions.AI.ChatMessage> AsChatMessages(this IEnumerable<ChatMessage> messages) 169Microsoft.Extensions.AI.ChatMessage resultMessage = new()

27public static IEnumerable<ResponseItem> AsOpenAIResponseItems(this IEnumerable<ChatMessage> messages, ChatOptions? options = null) => 30/// <summary>Creates a sequence of <see cref="ChatMessage"/> instances from the specified input items.</summary> 32/// <returns>A sequence of <see cref="ChatMessage"/> instances.</returns> 34public static IEnumerable<ChatMessage> AsChatMessages(this IEnumerable<ResponseItem> items) =>

83IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) => 88IEnumerable<ChatMessage> messages, ChatOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) 297IEnumerable<ChatMessage> messages, ChatOptions? options, CancellationToken cancellationToken) 418foreach (var chatMessage in messages)

71IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 86IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 120internal static IEnumerable<OpenAI.Chat.ChatMessage> ToOpenAIChatMessages(IEnumerable<ChatMessage> inputs, ChatOptions? chatOptions) 130foreach (ChatMessage input in inputs) 447ChatMessage returnMessage = new()

70IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 118foreach (var message in response.Messages) 127internal static IEnumerable<ChatMessage> ToChatMessages(IEnumerable<ResponseItem> items) 129ChatMessage? message = null; 178IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 494/// <summary>Convert a sequence of <see cref="ChatMessage"/>s to <see cref="ResponseItem"/>s.</summary> 495internal static IEnumerable<ResponseItem> ToOpenAIResponseItems(IEnumerable<ChatMessage> inputs, ChatOptions? options) 499foreach (ChatMessage input in inputs)

802List<ChatMessage> messages = 909List<ChatMessage> messages = 1005List<ChatMessage> messages = 1447List<ChatMessage> messages =

86Assert.Throws<ArgumentNullException>("messages", () => ((IEnumerable<ChatMessage>)null!).AsOpenAIChatMessages()); 88List<ChatMessage> messages = 152Assert.Throws<ArgumentNullException>("messages", () => ((IEnumerable<ChatMessage>)null!).AsOpenAIResponseItems()); 154List<ChatMessage> messages = 228ChatMessage message = Assert.Single(response.Messages); 259ChatMessage message = Assert.Single(response.Messages); 333List<ChatMessage> inputMessages = 344var message = convertedMessages[0]; 359List<ChatMessage> inputMessages = 373var message = convertedMessages[0];

33ChatMessage m = Assert.Single(response.Messages);

81var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 142var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 207var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 226var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 245var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 273var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 301var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 369var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") }; 397var chatHistory = new List<ChatMessage> { new(ChatRole.User, "Hello") };

76var response = await client.GetResponseAsync(Array.Empty<ChatMessage>(), providedOptions, cts.Token); 80await using var e = client.GetStreamingResponseAsync(Array.Empty<ChatMessage>(), providedOptions, cts.Token).GetAsyncEnumerator();

122private sealed class CustomCachingChatClient(IChatClient innerClient, IDistributedCache storage, Func<IEnumerable<ChatMessage>, ChatOptions?, bool> enableCaching) : 125protected override bool EnableCaching(IEnumerable<ChatMessage> messages, ChatOptions? options) => enableCaching(messages, options); 184var input = new ChatMessage(ChatRole.User, "abc"); 223var input = new ChatMessage(ChatRole.User, "abc"); 494var input = new ChatMessage(ChatRole.User, "abc"); 532var input = new ChatMessage(ChatRole.User, "abc"); 805ChatMessage expectedMessage = expected.Messages.Last(); 806ChatMessage actualMessage = actual.Messages.Last(); 880protected override string GetCacheKey(IEnumerable<ChatMessage> messages, ChatOptions? options, params ReadOnlySpan<object?> additionalValues)

47List<ChatMessage> messages = [];

91List<ChatMessage> plan = 125List<ChatMessage> plan = 158List<ChatMessage> plan = 189List<ChatMessage> plan = 249List<ChatMessage> plan = 293List<ChatMessage> plan = 327List<ChatMessage> plan = 376List<ChatMessage> plan = 425List<ChatMessage> plan = 503List<ChatMessage> plan = 520private static IEnumerable<ChatMessage> CreateFunctionCallIterationPlan(ref int callIndex, params bool[] shouldThrow) 522var assistantMessage = new ChatMessage(ChatRole.Assistant, []); 523var toolMessage = new ChatMessage(ChatRole.Tool, []); 550List<ChatMessage> plan = 567static void Validate(List<ChatMessage> finalChat) 587List<ChatMessage> plan = 609List<ChatMessage> plan = 665List<ChatMessage> plan = 726var messages = new List<ChatMessage> 784var messages = new List<ChatMessage> 795ChatMessage message = chatContents.Count() is 1 or 3 ? 842List<ChatMessage> planBeforeTermination = 852List<ChatMessage> plan = 867async Task InvokeAsync(Func<Task<List<ChatMessage>>> work) 911var existingSearchResult = chatContents.SingleOrDefault(m => m.Role == ChatRole.Tool); 920var message = new ChatMessage(ChatRole.Assistant, resultContents); 928List<ChatMessage> messages = [new(ChatRole.User, "hello")]; 934var lastMessage = messages.Last(); 955Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, ChatResponse> callback = 998List<ChatMessage> plan = 1027List<ChatMessage> plan = 1077private static async Task<List<ChatMessage>> InvokeAndAssertAsync( 1079List<ChatMessage> plan, 1080List<ChatMessage>? expected = null, 1089List<ChatMessage> chat = [plan[0]]; 1103var message = new ChatMessage(ChatRole.Assistant, [.. plan[contents.Count()].Contents]) 1113var result = await service.GetResponseAsync(new EnumeratedOnceEnumerable<ChatMessage>(chat), options, cts.Token); 1122var expectedMessage = expected[i]; 1123var chatMessage = chat[i]; 1177private static async Task<List<ChatMessage>> InvokeAndAssertStreamingAsync( 1179List<ChatMessage> plan, 1180List<ChatMessage>? expected = null, 1189List<ChatMessage> chat = [plan[0]]; 1197ChatMessage message = new(ChatRole.Assistant, [.. plan[contents.Count()].Contents]) 1207var result = await service.GetStreamingResponseAsync(new EnumeratedOnceEnumerable<ChatMessage>(chat), options, cts.Token).ToChatResponseAsync(); 1216var expectedMessage = expected[i]; 1217var chatMessage = chat[i];

65IEnumerable<ChatMessage> messages, ChatOptions? options, [EnumeratorCancellation] CancellationToken cancellationToken) 108List<ChatMessage> messages =

28IList<ChatMessage> expectedMessages = []; 78IList<ChatMessage> expectedMessages = []; 120IList<ChatMessage> expectedMessages = []; 147IEnumerable<ChatMessage> messages, ChatOptions? options, IChatClient innerClient, [EnumeratorCancellation] CancellationToken cancellationToken) 171IList<ChatMessage> expectedMessages = []; 218IEnumerable<ChatMessage> messages, ChatOptions? options, IChatClient innerClient, [EnumeratorCancellation] CancellationToken cancellationToken)

20public Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, Task<ChatResponse>>? GetResponseAsyncCallback { get; set; } 22public Func<IEnumerable<ChatMessage>, ChatOptions?, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? GetStreamingResponseAsyncCallback { get; set; } 29public Task<ChatResponse> GetResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 32public IAsyncEnumerable<ChatResponseUpdate> GetStreamingResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default)

14[JsonSerializable(typeof(IList<ChatMessage>))]

36public virtual Task<ChatResponse> GetResponseAsync(IEnumerable<ChatMessage> messages, ChatOptions? options = null, CancellationToken cancellationToken = default) 47var chatMessage = new ChatMessage(ChatRole.Assistant, output); 59IEnumerable<ChatMessage> messages,

26public static CausalLMDataset Create(IEnumerable<IEnumerable<ChatMessage>> inputs, 27IEnumerable<ChatMessage> outputs,

31/// <param name="messages">the list of <see cref="ChatMessage"/> to be rendered</param> 35string BuildPrompt(IEnumerable<ChatMessage> messages, ChatOptions? options = null, bool appendAssistantTag = true);

82var inputs = new List<List<ChatMessage>> 84new List<ChatMessage> 91var outputs = new List<ChatMessage>

91public string BuildPrompt(IEnumerable<ChatMessage> messages, ChatOptions? options = null, bool appendAssistantTag = true) 106foreach (var message in messages)

28IEnumerable<ChatMessage> messages, 47IEnumerable<ChatMessage> messages,

33IEnumerable<ChatMessage> messages, 52IEnumerable<ChatMessage> messages,

92public string BuildPrompt(IEnumerable<ChatMessage> messages, ChatOptions? options = null, bool appendAssistantTag = true) 109foreach (var message in messages)

105var trainChatHistory = new List<ChatMessage> 111var assistantMessage = new ChatMessage(ChatRole.Assistant, data.output);

47var chatMessage = new ChatMessage(ChatRole.User, task);

37var chatMessage = new ChatMessage(ChatRole.User, task);