20public class DelegatingChatClient : IChatClient

11public sealed class TestChatClient : IChatClient

17internal sealed class ContentSafetyChatClient : IChatClient

1359private sealed class TestSummarizingChatClient : IChatClient

11public sealed class TestChatClient : IChatClient

644private sealed class TestChatClient : IChatClient

27internal sealed class OpenAIAssistantsChatClient : IChatClient

29internal sealed partial class OpenAIChatClient : IChatClient

31internal sealed class OpenAIResponsesChatClient : IChatClient

11public sealed class TestChatClient : IChatClient

11public sealed class TestChatClient : IChatClient

17public abstract class CausalLMPipelineChatClient<TTokenizer, TCausalLMModel> : IChatClient

205/// Creates a <see cref="IChatClient"/> from the <see cref="ChatCompletionsClient"/> registered in the service collection. 211/// The following example shows how to register an <see cref="IChatClient"/> and use it in a minimal API endpoint: 233/// Creates a <see cref="IChatClient"/> from the <see cref="ChatCompletionsClient"/> registered in the service collection. 236/// <param name="serviceKey">The service key with which the <see cref="IChatClient"/> will be registered.</param> 240/// The following example shows how to register a keyed <see cref="IChatClient"/> and use it in a minimal API endpoint: 264private static IChatClient CreateInnerChatClient(AspireChatCompletionsClientBuilder builder, IServiceProvider services, string? deploymentName) 270var result = chatCompletionsClient.AsIChatClient(deploymentName ?? builder.DeploymentName);

107var client = useKeyed ? 108host.Services.GetKeyedService<IChatClient>("inference") : 109host.Services.GetService<IChatClient>(); 132var client = useKeyed ? 133host.Services.GetKeyedService<IChatClient>("inference") : 134host.Services.GetService<IChatClient>();

13public class ConformanceTests : ConformanceTests<IChatClient, ChatCompletionsClientSettings> 81protected override void TriggerActivity(IChatClient service)

35var client = useKeyed ? 36host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 37host.Services.GetRequiredService<IChatClient>(); 65var client = useKeyed ? 66host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 67host.Services.GetRequiredService<IChatClient>(); 93var client = useKeyed ? 94host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 95host.Services.GetRequiredService<IChatClient>(); 125host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 126host.Services.GetRequiredService<IChatClient>(); 156host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 157host.Services.GetRequiredService<IChatClient>(); 186var client = useKeyed ? 187host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 188host.Services.GetRequiredService<IChatClient>(); 213var client = useKeyed ? 214host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 215host.Services.GetRequiredService<IChatClient>(); 220static Task<ChatResponse> TestMiddleware(IEnumerable<ChatMessage> list, ChatOptions? options, IChatClient client, CancellationToken token)

243var chatClient = useKeyed ? 244host.Services.GetRequiredKeyedService<IChatClient>("chat") : 245host.Services.GetRequiredService<IChatClient>();

14public class ConformanceTests : ConformanceTests<IChatClient, AzureOpenAISettings> 106protected override void TriggerActivity(IChatClient service)

295IChatClient client,

200private IChatClient _client = null!; 201private IChatClient _followUpClient = null!;

45public IChatClient CreateClient(string model) 49var innerChatClient = new OpenAI.Chat.ChatClient(

13/// Provides extension methods for registering <see cref="IChatClient"/> as a singleton in the services provided by the <see cref="IHostApplicationBuilder"/>. 18/// Registers a singleton <see cref="IChatClient"/> in the services provided by the <paramref name="builder"/>. 22/// <returns>A <see cref="ChatClientBuilder"/> that can be used to build a pipeline around the inner <see cref="IChatClient"/>.</returns> 34/// Registers a keyed singleton <see cref="IChatClient"/> in the services provided by the <paramref name="builder"/>. 37/// <param name="serviceKey">The service key with which the <see cref="IChatClient"/> will be registered.</param> 39/// <returns>A <see cref="ChatClientBuilder"/> that can be used to build a pipeline around the inner <see cref="IChatClient"/>.</returns> 58private static IChatClient CreateInnerChatClient( 68var result = openAiClient.GetChatClient(deploymentName).AsIChatClient();

38var client = useKeyed ? 39host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 40host.Services.GetRequiredService<IChatClient>(); 68var client = useKeyed ? 69host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 70host.Services.GetRequiredService<IChatClient>(); 96var client = useKeyed ? 97host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 98host.Services.GetRequiredService<IChatClient>(); 128host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 129host.Services.GetRequiredService<IChatClient>(); 159host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 160host.Services.GetRequiredService<IChatClient>(); 189var client = useKeyed ? 190host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 191host.Services.GetRequiredService<IChatClient>(); 216var client = useKeyed ? 217host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 218host.Services.GetRequiredService<IChatClient>(); 249var client = useKeyed ? 250host.Services.GetRequiredKeyedService<IChatClient>("openai_chatclient") : 251host.Services.GetRequiredService<IChatClient>(); 268private static Task<ChatResponse> TestMiddleware(IEnumerable<ChatMessage> list, ChatOptions? options, IChatClient client, CancellationToken token)

13public class ConformanceTests : ConformanceTests<IChatClient, OpenAISettings> 88protected override void TriggerActivity(IChatClient service)

21private readonly Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, Task<ChatResponse>>? _getResponseFunc; 29private readonly Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? _getStreamingResponseFunc; 50IChatClient innerClient, 76IChatClient innerClient, 77Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, Task<ChatResponse>>? getResponseFunc, 78Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? getStreamingResponseFunc)

25/// <param name="innerClient">The underlying <see cref="IChatClient"/>.</param> 26protected CachingChatClient(IChatClient innerClient) 154/// This is used when there is a call to <see cref="IChatClient.GetResponseAsync"/>. 164/// This is used when there is a call to <see cref="IChatClient.GetStreamingResponseAsync"/>. 174/// This is used when there is a call to <see cref="IChatClient.GetResponseAsync"/>. 186/// This is used when there is a call to <see cref="IChatClient.GetStreamingResponseAsync"/>. 203/// be passed through to the inner <see cref="IChatClient"/> without attempting to read from or write to the cache.

12/// <summary>A builder for creating pipelines of <see cref="IChatClient"/>.</summary> 15private readonly Func<IServiceProvider, IChatClient> _innerClientFactory; 18private List<Func<IChatClient, IServiceProvider, IChatClient>>? _clientFactories; 21/// <param name="innerClient">The inner <see cref="IChatClient"/> that represents the underlying backend.</param> 23public ChatClientBuilder(IChatClient innerClient) 30/// <param name="innerClientFactory">A callback that produces the inner <see cref="IChatClient"/> that represents the underlying backend.</param> 31public ChatClientBuilder(Func<IServiceProvider, IChatClient> innerClientFactory) 36/// <summary>Builds an <see cref="IChatClient"/> that represents the entire pipeline. Calls to this instance will pass through each of the pipeline stages in turn.</summary> 38/// The <see cref="IServiceProvider"/> that should provide services to the <see cref="IChatClient"/> instances. 41/// <returns>An instance of <see cref="IChatClient"/> that represents the entire pipeline.</returns> 42public IChatClient Build(IServiceProvider? services = null) 45var chatClient = _innerClientFactory(services); 57$"Ensure that the callbacks passed to {nameof(Use)} return non-null {nameof(IChatClient)} instances."); 70public ChatClientBuilder Use(Func<IChatClient, IChatClient> clientFactory) 82public ChatClientBuilder Use(Func<IChatClient, IServiceProvider, IChatClient> clientFactory) 92/// an implementation for both <see cref="IChatClient.GetResponseAsync"/> and <see cref="IChatClient.GetStreamingResponseAsync"/>. 95/// A delegate that provides the implementation for both <see cref="IChatClient.GetResponseAsync"/> and 96/// <see cref="IChatClient.GetStreamingResponseAsync"/>. This delegate is invoked with the list of chat messages, the chat 117/// an implementation for both <see cref="IChatClient.GetResponseAsync"/> and <see cref="IChatClient.GetStreamingResponseAsync"/>. 120/// A delegate that provides the implementation for <see cref="IChatClient.GetResponseAsync"/>. When <see langword="null"/>, 121/// <paramref name="getStreamingResponseFunc"/> must be non-null, and the implementation of <see cref="IChatClient.GetResponseAsync"/> 125/// A delegate that provides the implementation for <see cref="IChatClient.GetStreamingResponseAsync"/>. When <see langword="null"/>, 126/// <paramref name="getResponseFunc"/> must be non-null, and the implementation of <see cref="IChatClient.GetStreamingResponseAsync"/> 132/// <paramref name="getResponseFunc"/> will provide the implementation of <see cref="IChatClient.GetResponseAsync"/>, and 133/// <paramref name="getStreamingResponseFunc"/> will provide the implementation of <see cref="IChatClient.GetStreamingResponseAsync"/>. 135/// is supplied without <paramref name="getStreamingResponseFunc"/>, the implementation of <see cref="IChatClient.GetStreamingResponseAsync"/> 138/// <see cref="IChatClient.GetResponseAsync"/> will be implemented by combining the updates from <paramref name="getStreamingResponseFunc"/>. 143Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, Task<ChatResponse>>? getResponseFunc, 144Func<IEnumerable<ChatMessage>, ChatOptions?, IChatClient, CancellationToken, IAsyncEnumerable<ChatResponseUpdate>>? getStreamingResponseFunc)

9/// <summary>Provides extension methods for working with <see cref="IChatClient"/> in the context of <see cref="ChatClientBuilder"/>.</summary> 20public static ChatClientBuilder AsBuilder(this IChatClient innerClient)

10/// <summary>Provides extension methods for registering <see cref="IChatClient"/> with a <see cref="IServiceCollection"/>.</summary> 13/// <summary>Registers a singleton <see cref="IChatClient"/> in the <see cref="IServiceCollection"/>.</summary> 15/// <param name="innerClient">The inner <see cref="IChatClient"/> that represents the underlying backend.</param> 23IChatClient innerClient, 32/// <summary>Registers a singleton <see cref="IChatClient"/> in the <see cref="IServiceCollection"/>.</summary> 34/// <param name="innerClientFactory">A callback that produces the inner <see cref="IChatClient"/> that represents the underlying backend.</param> 42Func<IServiceProvider, IChatClient> innerClientFactory, 49serviceCollection.Add(new ServiceDescriptor(typeof(IChatClient), builder.Build, lifetime)); 53/// <summary>Registers a keyed singleton <see cref="IChatClient"/> in the <see cref="IServiceCollection"/>.</summary> 56/// <param name="innerClient">The inner <see cref="IChatClient"/> that represents the underlying backend.</param> 65IChatClient innerClient, 74/// <summary>Registers a keyed singleton <see cref="IChatClient"/> in the <see cref="IServiceCollection"/>.</summary> 77/// <param name="innerClientFactory">A callback that produces the inner <see cref="IChatClient"/> that represents the underlying backend.</param> 86Func<IServiceProvider, IChatClient> innerClientFactory, 93serviceCollection.Add(new ServiceDescriptor(typeof(IChatClient), serviceKey, factory: (services, serviceKey) => builder.Build(services), lifetime));

19/// Provides extension methods on <see cref="IChatClient"/> that simplify working with structured output. 25/// <param name="chatClient">The <see cref="IChatClient"/>.</param> 36this IChatClient chatClient, 44/// <param name="chatClient">The <see cref="IChatClient"/>.</param> 56this IChatClient chatClient, 64/// <param name="chatClient">The <see cref="IChatClient"/>.</param> 75this IChatClient chatClient, 83/// <param name="chatClient">The <see cref="IChatClient"/>.</param> 95this IChatClient chatClient, 104/// <param name="chatClient">The <see cref="IChatClient"/>.</param> 116this IChatClient chatClient, 125/// <param name="chatClient">The <see cref="IChatClient"/>.</param> 138this IChatClient chatClient,

30public ConfigureOptionsChatClient(IChatClient innerClient, Action<ChatOptions> configure)

31/// The provided implementation of <see cref="IChatClient"/> is thread-safe for concurrent use so long as the employed 48/// <param name="innerClient">The underlying <see cref="IChatClient"/>.</param> 50public DistributedCachingChatClient(IChatClient innerClient, IDistributedCache storage)

13/// Extension methods for adding a <see cref="DistributedCachingChatClient"/> to an <see cref="IChatClient"/> pipeline.

84/// If multiple function call requests are issued as part of a single iteration (a single response from the inner <see cref="IChatClient"/>), 92/// <see cref="IChatClient.GetStreamingResponseAsync"/> call as opposed to a <see cref="IChatClient.GetResponseAsync"/> call.

31/// <see cref="IChatClient"/>, it responds by invoking the corresponding <see cref="AIFunction"/> defined 50/// Due to the nature of interactions with an underlying <see cref="IChatClient"/>, if any <see cref="FunctionCallContent"/> is received 85/// <param name="innerClient">The underlying <see cref="IChatClient"/>, or the next instance in a chain of clients.</param> 88public FunctionInvokingChatClient(IChatClient innerClient, ILoggerFactory? loggerFactory = null, IServiceProvider? functionInvocationServices = null) 110/// in the chat history when calling the underlying <see cref="IChatClient"/>. 114/// when calling the underlying <see cref="IChatClient"/>. 126/// Setting the value to <see langword="true"/> can help the underlying <see cref="IChatClient"/> bypass problems on 198/// controlled by <see cref="IncludeDetailedErrors"/>). This allows the <see cref="IChatClient"/> to 334Throw.InvalidOperationException($"The inner {nameof(IChatClient)} returned a null {nameof(ChatResponse)}."); 526Throw.InvalidOperationException($"The inner {nameof(IChatClient)} streamed a null {nameof(ChatResponseUpdate)}."); 1778/// using the same message id that the <see cref="FunctionCallContent"/> was originally returned with from the downstream <see cref="IChatClient"/>.

20/// The provided implementation of <see cref="IChatClient"/> is thread-safe for concurrent use so long as the 58/// <param name="innerClient">The underlying <see cref="IChatClient"/>.</param> 63public ImageGeneratingChatClient(IChatClient innerClient, IImageGenerator imageGenerator, DataContentHandling dataContentHandling = DataContentHandling.AllImages)

18/// The provided implementation of <see cref="IChatClient"/> is thread-safe for concurrent use so long as the 37/// <param name="innerClient">The underlying <see cref="IChatClient"/>.</param> 39public LoggingChatClient(IChatClient innerClient, ILogger logger)

53/// <param name="innerClient">The underlying <see cref="IChatClient"/>.</param> 57public OpenTelemetryChatClient(IChatClient innerClient, ILogger? logger = null, string? sourceName = null)

23/// <param name="innerClient">The underlying <see cref="IChatClient"/>, or the next instance in a chain of clients.</param> 25public ReducingChatClient(IChatClient innerClient, IChatReducer reducer)

46private readonly IChatClient _chatClient; 66public SummarizingChatReducer(IChatClient chatClient, int targetCount, int? threshold) 124IChatClient chatClient, int indexOfFirstMessageToKeep, string summarizationPrompt, CancellationToken cancellationToken)

34public ToolReducingChatClient(IChatClient innerClient, IToolReductionStrategy strategy)

9/// Indicates that an <see cref="IChatClient"/> is free to select any of the available tools, or none at all.

12/// <summary>Provides a collection of static methods for extending <see cref="IChatClient"/> instances.</summary> 15/// <summary>Asks the <see cref="IChatClient"/> for an object of type <typeparamref name="TService"/>.</summary> 22/// The purpose of this method is to allow for the retrieval of strongly typed services that may be provided by the <see cref="IChatClient"/>, 25public static TService? GetService<TService>(this IChatClient client, object? serviceKey = null) 33/// Asks the <see cref="IChatClient"/> for an object of the specified type <paramref name="serviceType"/> 44/// The purpose of this method is to allow for the retrieval of services that are required to be provided by the <see cref="IChatClient"/>, 47public static object GetRequiredService(this IChatClient client, Type serviceType, object? serviceKey = null) 58/// Asks the <see cref="IChatClient"/> for an object of type <typeparamref name="TService"/> 68/// The purpose of this method is to allow for the retrieval of strongly typed services that are required to be provided by the <see cref="IChatClient"/>, 71public static TService GetRequiredService<TService>(this IChatClient client, object? serviceKey = null) 92this IChatClient client, 112this IChatClient client, 132this IChatClient client, 152this IChatClient client,

8/// <summary>Provides metadata about an <see cref="IChatClient"/>.</summary> 37/// This value can be <see langword="null"/> if no default model is set on the corresponding <see cref="IChatClient"/>.

12/// <summary>Represents a chat message used by an <see cref="IChatClient" />.</summary>

63/// <summary>Gets or sets additional per-request instructions to be provided to the <see cref="IChatClient"/>.</summary> 146/// <see langword="true"/> for no limit. <see langword="false"/> if the <see cref="IChatClient"/> is asked to return a maximum of one tool call per request. If <see langword="null"/>, the provider can select its own default. 197/// property if the <see cref="IChatClient"/> implementation supports them. 198/// Streamed background responses, such as those returned by default by <see cref="IChatClient.GetStreamingResponseAsync"/>, 201/// Non-streamed background responses, such as those returned by <see cref="IChatClient.GetResponseAsync"/>, 203/// and passing it to this property on subsequent calls to <see cref="IChatClient.GetResponseAsync"/>. 213/// The underlying <see cref="IChatClient" /> implementation might have its own representation of options. 214/// When <see cref="IChatClient.GetResponseAsync" /> or <see cref="IChatClient.GetStreamingResponseAsync" /> 217/// which concrete <see cref="IChatClient" /> is being used and how it represents options, a new instance of that 218/// implementation-specific options type can be returned by this callback for the <see cref="IChatClient" /> 227public Func<IChatClient, object?>? RawRepresentationFactory { get; set; }

18/// request to a <see cref="IChatClient"/> might actually generate multiple round-trips to an inner <see cref="IChatClient"/> 69/// Some <see cref="IChatClient"/> implementations are capable of storing the state for a conversation, such that 70/// the input messages supplied to <see cref="IChatClient.GetResponseAsync"/> need only be the additional messages beyond 93/// <see cref="IChatClient"/> implementations that support background responses will return 100/// <see cref="ChatOptions.ContinuationToken"/> on subsequent calls to <see cref="IChatClient.GetResponseAsync"/>

14/// Represents a single streaming response chunk from an <see cref="IChatClient"/>. 142/// Some <see cref="IChatClient"/> implementations are capable of storing the state for a conversation, such that 143/// the input messages supplied to <see cref="IChatClient.GetStreamingResponseAsync"/> need only be the additional messages beyond 165/// <see cref="IChatClient"/> implementations that support background responses return 170/// passed to <see cref="ChatOptions.ContinuationToken"/> on subsequent calls to <see cref="IChatClient.GetStreamingResponseAsync"/>

9/// Describes how tools should be selected by a <see cref="IChatClient"/>. 34/// instances, and the <see cref="IChatClient"/> is free to invoke zero or more of them. 43/// instances, but the <see cref="IChatClient"/> should not request the invocation of 44/// any of them. This can be used when the <see cref="IChatClient"/> should know about

13/// Provides an optional base class for an <see cref="IChatClient"/> that passes through calls to another instance. 16/// This is recommended as a base type when building clients that can be chained around an underlying <see cref="IChatClient"/>. 27protected DelegatingChatClient(IChatClient innerClient) 39/// <summary>Gets the inner <see cref="IChatClient" />.</summary> 40protected IChatClient InnerClient { get; }

15/// sent to the underlying provider or returned from it. Unless a specific <see cref="IChatClient"/> implementation 19/// Unless otherwise specified, all members of <see cref="IChatClient"/> are thread-safe for concurrent use. 20/// It is expected that all implementations of <see cref="IChatClient"/> support being used by multiple requests concurrently. 24/// However, implementations of <see cref="IChatClient"/> might mutate the arguments supplied to <see cref="GetResponseAsync"/> and 27/// that no <see cref="IChatClient"/> instances are used which might employ such mutation. For example, the ConfigureOptions method is 59/// <summary>Asks the <see cref="IChatClient"/> for an object of the specified type <paramref name="serviceType"/>.</summary> 65/// The purpose of this method is to allow for the retrieval of strongly typed services that might be provided by the <see cref="IChatClient"/>,

9/// Indicates that an <see cref="IChatClient"/> should not request the invocation of any tools.

16/// A tool reduction strategy is invoked prior to sending a request to an underlying <see cref="IChatClient"/>,

40/// Unsupported inputs will be ignored by the <see cref="IChatClient"/> to which the tool is passed.

17/// to their corresponding JSON schemas transformed according to the specified <see cref="TransformOptions"/> policy. It is intended for use by <see cref="IChatClient"/> 21/// It is recommended <see cref="IChatClient"/> implementations with schema transformation requirements create a single static instance of this cache.

42if (serviceType == typeof(IChatClient)) 57Assert.Null(client.GetService<IChatClient>()); 69Assert.Throws<InvalidOperationException>(() => client.GetRequiredService<IChatClient>());

81Func<IChatClient, object?> rawRepresentationFactory = (c) => null;

126var client = delegating.GetService<IChatClient>(expectedKey); 163private sealed class NoOpDelegatingChatClient(IChatClient innerClient)

7/// Specifies the <see cref="IChatClient"/> that should be used when evaluation is performed using an AI model. 9/// <param name="chatClient">An <see cref="IChatClient"/> that can be used to communicate with an AI model.</param> 10public sealed class ChatConfiguration(IChatClient chatClient) 13/// Gets an <see cref="IChatClient"/> that can be used to communicate with an AI model. 15public IChatClient ChatClient { get; } = chatClient;

89/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or

33/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or 76/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or 118/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or 158/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or 206/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or 251/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or

43/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that should be used if one or

74/// The <see cref="ChatClientMetadata"/> for the <see cref="IChatClient"/> that was used to communicate with the

74/// The <see cref="ChatClientMetadata"/> for the <see cref="IChatClient"/> that was used to communicate with the

49IChatClient chatClient = chatConfiguration.ChatClient; 50IChatClient chatClientWithToolCalling = chatClient.AsBuilder().UseFunctionInvocation().Build(); 205GetConversationWithoutToolsAsync(IChatClient chatClient) 218GetConversationWithToolsAsync(IChatClient chatClient)

86IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient; 127IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient; 165IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient; 200IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient;

183IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient; 261IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient; 588IChatClient chatClient = scenarioRun.ChatConfiguration!.ChatClient;

20IChatClient chatClient = openAIClient.AsIChatClient();

34/// for the <see cref="IChatClient"/>. 110/// <see cref="IChatClient"/>.

36/// Gets a <see cref="Evaluation.ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that is used by 54/// the configured <see cref="IChatClient"/> and the <see cref="ChatOptions"/> that are supplied as part of 108/// A <see cref="Evaluation.ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that is used by 212IChatClient originalChatClient = chatConfiguration.ChatClient; 228IChatClient chatClient; 265private static IEnumerable<string> GetCachingKeysForChatClient(IChatClient chatClient)

21IChatClient originalChatClient,

89/// Gets a <see cref="Evaluation.ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that is used by

18internal SimpleChatClient(IChatClient originalChatClient, ChatDetails chatDetails)

74/// The <see cref="ChatClientMetadata"/> for the <see cref="IChatClient"/> that was used to communicate with the

28/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that is used by AI-based

28/// A <see cref="ChatConfiguration"/> that specifies the <see cref="IChatClient"/> that is used by AI-based

20private readonly IChatClient? _originalChatClient; 25IChatClient? originalChatClient = null) 169Failed to invoke '{nameof(IChatClient)}.{callerMemberName}()'.

58/// The <see cref="IChatClient"/> that should be used to communicate with the Azure AI Foundry Evaluation Service 82IChatClient contentSafetyServiceChatClient,

26/// a new <see cref="IChatClient"/> that can be used both to communicate with the AI model that 62/// The original <see cref="IChatClient"/>. The returned <see cref="ChatConfiguration.ChatClient"/> will be a 73IChatClient originalChatClient)

76IChatClient chatClient = chatConfiguration.ChatClient;

74/// The <see cref="ChatClientMetadata"/> for the <see cref="IChatClient"/> that was used to communicate with the

13internal sealed class CallCountingChatClient(IChatClient innerClient) : DelegatingChatClient(innerClient)

42protected IChatClient? ChatClient { get; } 52protected abstract IChatClient? CreateChatClient(); 733using var chatClient = CreateChatClient()! 772using var chatClient = CreateChatClient()! 814using var chatClient = CreateChatClient()! 847using var chatClient = CreateChatClient()!.AsBuilder() 866using var chatClient = CreateChatClient()!.AsBuilder() 888using var chatClient = CreateChatClient()! 914using var chatClient = CreateChatClient()! 946var chatClient = CreateChatClient()!.AsBuilder() 1097var captureOutputChatClient = ChatClient.AsBuilder() 1241var chatClient = ChatClient 1361private IChatClient _summarizerChatClient; 1362private IChatClient _innerChatClient; 1370public TestSummarizingChatClient(IChatClient innerClient, int targetCount, int threshold) 1447using var client = ChatClient! 1522using var client = ChatClient! 1577using var client = ChatClient! 1692using var client = ChatClient!

25private readonly IChatClient? _baseChatClient; 43protected IChatClient? ChatClient { get; } 61protected abstract IChatClient? CreateChatClient(); 70protected async Task<ChatResponse> GetResponseAsync(bool useStreaming, IEnumerable<ChatMessage> messages, ChatOptions? options = null, IChatClient? chatClient = null) 364using var imageGeneratingClient = _baseChatClient!

31internal sealed class PromptBasedFunctionCallingChatClient(IChatClient innerClient)

18/// <summary>Provides an example of a custom <see cref="IChatClient"/> for reducing chat message lists.</summary> 38using var client = innerClient

378using var client = inner.AsBuilder().UseToolReduction(strategy).Build(); 408using var client = inner.AsBuilder().UseToolReduction(strategy).Build();

17protected override IChatClient? CreateChatClient() => 35using var chatClient = CreateChatClient()! 59using var chatClient = CreateChatClient()! 107private sealed class AssertNoToolsDefinedChatClient(IChatClient innerClient) : DelegatingChatClient(innerClient)

15protected override IChatClient? CreateChatClient() =>

125/// The <see cref="IChatClient"/> returned by <see cref="OpenAIClientExtensions.AsIChatClient(ResponsesClient)"/> will 140/// The returned tool is only suitable for use with the <see cref="IChatClient"/> returned by 141/// <see cref="OpenAIClientExtensions.AsIChatClient(ResponsesClient)"/> (or <see cref="IChatClient"/>s that delegate 142/// to such an instance). It is likely to be ignored by any other <see cref="IChatClient"/> implementation. 148/// capable of being respected by any <see cref="IChatClient"/> implementation. This method does not attempt to 150/// the <see cref="IChatClient"/> returned by <see cref="OpenAIClientExtensions.AsIChatClient(ResponsesClient)"/> will

25/// <summary>Represents an <see cref="IChatClient"/> for an OpenAI <see cref="AssistantClient"/>.</summary>

28/// <summary>Represents an <see cref="IChatClient"/> for an OpenAI <see cref="OpenAIClient"/> or <see cref="ChatClient"/>.</summary> 71object? IChatClient.GetService(Type serviceType, object? serviceKey)

113/// <summary>Gets an <see cref="IChatClient"/> for use with this <see cref="ChatClient"/>.</summary> 115/// <returns>An <see cref="IChatClient"/> that can be used to converse via the <see cref="ChatClient"/>.</returns> 117public static IChatClient AsIChatClient(this ChatClient chatClient) => 120/// <summary>Gets an <see cref="IChatClient"/> for use with this <see cref="ResponsesClient"/>.</summary> 122/// <returns>An <see cref="IChatClient"/> that can be used to converse via the <see cref="ResponsesClient"/>.</returns> 125public static IChatClient AsIChatClient(this ResponsesClient responseClient) => 128/// <summary>Gets an <see cref="IChatClient"/> for use with this <see cref="AssistantClient"/>.</summary> 129/// <param name="assistantClient">The <see cref="AssistantClient"/> instance to be accessed as an <see cref="IChatClient"/>.</param> 133/// <see cref="IChatClient.GetResponseAsync"/> or <see cref="IChatClient.GetStreamingResponseAsync"/> via the <see cref="ChatOptions.ConversationId"/> 136/// <returns>An <see cref="IChatClient"/> instance configured to interact with the specified agent and thread.</returns> 141public static IChatClient AsIChatClient(this AssistantClient assistantClient, string assistantId, string? threadId = null) => 144/// <summary>Gets an <see cref="IChatClient"/> for use with this <see cref="AssistantClient"/>.</summary> 145/// <param name="assistantClient">The <see cref="AssistantClient"/> instance to be accessed as an <see cref="IChatClient"/>.</param> 149/// <see cref="IChatClient.GetResponseAsync"/> or <see cref="IChatClient.GetStreamingResponseAsync"/> via the <see cref="ChatOptions.ConversationId"/> 152/// <returns>An <see cref="IChatClient"/> instance configured to interact with the specified agent and thread.</returns> 156public static IChatClient AsIChatClient(this AssistantClient assistantClient, Assistant assistant, string? threadId = null) =>

29/// <summary>Represents an <see cref="IChatClient"/> for an <see cref="ResponsesClient"/>.</summary> 77object? IChatClient.GetService(Type serviceType, object? serviceKey)

25protected override IChatClient? CreateChatClient()

35IChatClient[] clients = 41foreach (var chatClient in clients) 53IChatClient chatClient = assistantClient.AsIChatClient("assistantId"); 59using IChatClient pipeline = chatClient 72Assert.IsType<FunctionInvokingChatClient>(pipeline.GetService<IChatClient>());

8protected override IChatClient? CreateChatClient() =>

40IChatClient chatClient = client.GetChatClient(model).AsIChatClient(); 57IChatClient chatClient = openAIClient.AsIChatClient(); 59Assert.Same(chatClient, chatClient.GetService<IChatClient>()); 65using IChatClient pipeline = chatClient 78Assert.IsType<FunctionInvokingChatClient>(pipeline.GetService<IChatClient>()); 85IChatClient chatClient = openAIClient.AsIChatClient(); 87Assert.Same(chatClient, chatClient.GetService<IChatClient>()); 90using IChatClient pipeline = chatClient 103Assert.IsType<FunctionInvokingChatClient>(pipeline.GetService<IChatClient>()); 153using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 232using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 330using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 383using IChatClient client = CreateChatClient(httpClient, modelId: "gpt-4o-mini"); 460using IChatClient client = CreateChatClient(httpClient, modelId: "gpt-4o-mini"); 543using IChatClient client = CreateChatClient(httpClient, modelId: "gpt-4o-mini"); 617using IChatClient client = CreateChatClient(httpClient, modelId: "gpt-4o-mini"); 726using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 817using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 924using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1020using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1139using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1223using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1322using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1462using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1582using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1629using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1677using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1723using IChatClient client = CreateChatClient(httpClient, "gpt-4o-mini"); 1740private static IChatClient CreateChatClient(HttpClient httpClient, string modelId) => 1862using IChatClient client = CreateChatClient(httpClient, "o4-mini"); 1907using IChatClient client = CreateChatClient(httpClient, "gpt-oss-120b"); 1957using IChatClient client = CreateChatClient(httpClient, "gpt-oss-120b"); 2014using IChatClient client = new OpenAIClient(new ApiKeyCredential("apikey"), new OpenAIClientOptions { Transport = new HttpClientPipelineTransport(httpClient) })

12protected override IChatClient? CreateChatClient() =>

20protected override IChatClient? CreateChatClient() => 141using var client = CreateChatClient()!; 181using var client = CreateChatClient()!; 404using var client = CreateChatClient()!;

43IChatClient chatClient = client.GetResponsesClient(model).AsIChatClient(); 54IChatClient chatClient = openAIClient.AsIChatClient(); 56Assert.Same(chatClient, chatClient.GetService<IChatClient>()); 59using IChatClient pipeline = chatClient 72Assert.IsType<FunctionInvokingChatClient>(pipeline.GetService<IChatClient>()); 151using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 294using IChatClient client = CreateResponseClient(httpClient, "o4-mini"); 427using IChatClient client = CreateResponseClient(httpClient, "o4-mini"); 553using IChatClient client = CreateResponseClient(httpClient, "o4-mini"); 658using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 798using IChatClient client = CreateResponseClient(httpClient, "computer-use-preview"); 891using IChatClient client = CreateResponseClient(httpClient, "computer-use-preview"); 997using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 1142using IChatClient client = CreateResponseClient(httpClient, modelId: "gpt-4o-mini"); 1270using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 1404using (IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini")) 1525using (IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini")) 1770using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 2185using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 2308using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 2380using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 2469using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 2521using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 2616using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-2024-08-06"); 2697using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-2024-08-06"); 2764using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-2024-08-06"); 2888using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-2024-08-06"); 3108using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-2024-08-06"); 3195using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-2024-08-06"); 3264using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3316using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3374using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3433using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3494using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3556using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3619using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3692using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3773using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3854using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3932using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 3998using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4059using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4129using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4188using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4244using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4305using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4363using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4420using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4479using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4541using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4597using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4652using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4709using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4766using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4803using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4835using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4879using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4930using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 4976using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5011using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5046using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5081using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5119using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5157using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5177using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5215using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5258using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5301using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5344using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5419using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5491using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5532using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5586using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5649using IChatClient client = CreateResponseClient(httpClient, "gpt-4o-mini"); 5722using IChatClient client = CreateResponseClient(httpClient, "gpt-4o"); 5822using IChatClient client = CreateResponseClient(httpClient, "gpt-4o"); 5939using IChatClient client = CreateResponseClient(httpClient, "gpt-4o"); 6069using IChatClient client = CreateResponseClient(httpClient, "o4-mini"); 6123using IChatClient client = new OpenAIClient(new ApiKeyCredential("apikey"), new OpenAIClientOptions { Transport = new HttpClientPipelineTransport(httpClient) }) 6146private static IChatClient CreateResponseClient(HttpClient httpClient, string modelId) =>

61Assert.Throws<ArgumentNullException>("innerClient", () => new ChatClientBuilder((IChatClient)null!)); 62Assert.Throws<ArgumentNullException>("innerClient", () => ((IChatClient)null!).AsBuilder()); 68Assert.Throws<ArgumentNullException>("innerClientFactory", () => new ChatClientBuilder((Func<IServiceProvider, IChatClient>)null!)); 99private sealed class InnerClientCapturingChatClient(string name, IChatClient innerClient) : DelegatingChatClient(innerClient) 104public new IChatClient InnerClient => base.InnerClient;

41using IChatClient innerClient = new TestChatClient 58using var client = innerClient

26var instance1 = scope1.ServiceProvider.GetRequiredService<IChatClient>(); 27var instance1Copy = scope1.ServiceProvider.GetRequiredService<IChatClient>(); 28var instance2 = scope2.ServiceProvider.GetRequiredService<IChatClient>(); 50var instance1 = scope1.ServiceProvider.GetRequiredService<IChatClient>(); 51var instance1Copy = scope1.ServiceProvider.GetRequiredService<IChatClient>(); 52var instance2 = scope2.ServiceProvider.GetRequiredService<IChatClient>(); 73Assert.Null(services.GetService<IChatClient>()); 75var instance1 = scope1.ServiceProvider.GetRequiredKeyedService<IChatClient>("mykey"); 76var instance1Copy = scope1.ServiceProvider.GetRequiredKeyedService<IChatClient>("mykey"); 77var instance2 = scope2.ServiceProvider.GetRequiredKeyedService<IChatClient>("mykey"); 99Assert.Null(services.GetService<IChatClient>()); 101var instance1 = scope1.ServiceProvider.GetRequiredKeyedService<IChatClient>("mykey"); 102var instance1Copy = scope1.ServiceProvider.GetRequiredKeyedService<IChatClient>("mykey"); 103var instance2 = scope2.ServiceProvider.GetRequiredKeyedService<IChatClient>("mykey"); 126Assert.Equal(typeof(IChatClient), sd.ServiceType); 148Assert.Equal(typeof(IChatClient), sd.ServiceType); 248public class SingletonMiddleware(IChatClient inner, IServiceProvider services) : DelegatingChatClient(inner) 250public new IChatClient InnerClient => base.InnerClient;

123private sealed class CustomCachingChatClient(IChatClient innerClient, IDistributedCache storage, Func<IEnumerable<ChatMessage>, ChatOptions?, bool> enableCaching) : 875private sealed class CachingChatClientWithCustomKey(IChatClient innerClient, IDistributedCache storage)

984IChatClient service = configurePipeline(innerClient.AsBuilder()).Build(); 1065IChatClient service = configurePipeline(innerClient.AsBuilder()).Build(); 1262IChatClient service = configurePipeline(innerClient.AsBuilder()).Build(); 1344IChatClient service = configurePipeline(innerClient.AsBuilder()).Build();

1436using IChatClient service = innerClient.AsBuilder().UseFunctionInvocation().Build(); 1742var client = innerClient.AsBuilder() 2221IChatClient service = configurePipeline(innerClient.AsBuilder()).Build(services); 2285IChatClient service = configurePipeline(innerClient.AsBuilder()).Build(services);

161using var client = innerClient 178using var client = innerClient 196using var client = innerClient

30Assert.Same(innerClient, innerClient.AsBuilder().UseLogging(NullLoggerFactory.Instance).Build().GetService(typeof(IChatClient))); 55using IChatClient innerClient = new TestChatClient 63using IChatClient client = innerClient 100using IChatClient innerClient = new TestChatClient 112using IChatClient client = innerClient

868using var chatClient = innerClient 928using var chatClient = innerClient

114using var client = innerClient 151using var client = innerClient

34using IChatClient innerClient = new TestChatClient 55using IChatClient client = new ChatClientBuilder(innerClient) 83using IChatClient innerClient = new TestChatClient 95using IChatClient client = new ChatClientBuilder(innerClient) 125using IChatClient innerClient = new TestChatClient 137using IChatClient client = new ChatClientBuilder(innerClient) 147IEnumerable<ChatMessage> messages, ChatOptions? options, IChatClient innerClient, [EnumeratorCancellation] CancellationToken cancellationToken) 176using IChatClient innerClient = new TestChatClient 197using IChatClient client = new ChatClientBuilder(innerClient) 218IEnumerable<ChatMessage> messages, ChatOptions? options, IChatClient innerClient, [EnumeratorCancellation] CancellationToken cancellationToken)

19public EnricherOptions(IChatClient chatClient) 27public IChatClient ChatClient { get; }