feat: added AiLabs Jamba model. updated Amazon.Bedrock nugets #376
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| using System.Diagnostics; | ||
| using System.Text.Json.Nodes; | ||
| using LangChain.Providers.Amazon.Bedrock.Internal; | ||
|
|
||
| // ReSharper disable once CheckNamespace | ||
| namespace LangChain.Providers.Amazon.Bedrock; | ||
|
|
||
| public class Ai21LabsJambaChatModel( | ||
| BedrockProvider provider, | ||
| string id) | ||
| : ChatModel(id) | ||
| { | ||
| /// <summary> | ||
| /// Generates a chat response based on the provided `ChatRequest`. | ||
| /// </summary> | ||
| /// <param name="request">The `ChatRequest` containing the input messages and other parameters.</param> | ||
| /// <param name="settings">Optional `ChatSettings` to override the model's default settings.</param> | ||
| /// <param name="cancellationToken">A cancellation token to cancel the operation.</param> | ||
| /// <returns>A `ChatResponse` containing the generated messages and usage information.</returns> | ||
| public override async Task<ChatResponse> GenerateAsync( | ||
| ChatRequest request, | ||
| ChatSettings? settings = null, | ||
| CancellationToken cancellationToken = default) | ||
| { | ||
| request = request ?? throw new ArgumentNullException(nameof(request)); | ||
|
|
||
| var watch = Stopwatch.StartNew(); | ||
| var prompt = request.Messages.ToSimplePrompt(); | ||
|
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| var usedSettings = Ai21LabJambaChatSettings.Calculate( | ||
| requestSettings: settings, | ||
| modelSettings: Settings, | ||
| providerSettings: provider.ChatSettings); | ||
|
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| var bodyJson = CreateBodyJson(prompt, usedSettings); | ||
|
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| var response = await provider.Api.InvokeModelAsync(Id, bodyJson, cancellationToken) | ||
| .ConfigureAwait(false); | ||
|
|
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| var generatedText = response?["choices"]?.AsArray() | ||
| [0]?["message"]?.AsObject() | ||
| .AsObject()["content"]?.GetValue<string>() ?? ""; | ||
|
|
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| var result = request.Messages.ToList(); | ||
| result.Add(generatedText.AsAiMessage()); | ||
|
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| var usage = Usage.Empty with | ||
| { | ||
| Time = watch.Elapsed, | ||
| }; | ||
| AddUsage(usage); | ||
| provider.AddUsage(usage); | ||
|
|
||
| return new ChatResponse | ||
| { | ||
| Messages = result, | ||
| UsedSettings = usedSettings, | ||
| Usage = usage, | ||
| }; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Creates the request body JSON for the Ai21Labs model based on the provided prompt and settings. | ||
| /// </summary> | ||
| /// <param name="prompt">The input prompt for the model.</param> | ||
| /// <param name="usedSettings">The settings to use for the request.</param> | ||
| /// <returns>A `JsonObject` representing the request body.</returns> | ||
| private static JsonObject CreateBodyJson(string prompt, Ai21LabJambaChatSettings usedSettings) | ||
| { | ||
| var bodyJson = new JsonObject | ||
| { | ||
| ["messages"] = new JsonArray | ||
| { | ||
| new JsonObject | ||
| { | ||
| ["role"] = "user", | ||
| ["content"] = prompt | ||
| } | ||
| }, | ||
| ["max_tokens"] = usedSettings.MaxTokens!.Value, | ||
| ["top_p"] = usedSettings.TopP!.Value, | ||
| ["temperature"] = usedSettings.Temperature!.Value, | ||
|
|
||
| }; | ||
| return bodyJson; | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // ReSharper disable once CheckNamespace | ||
| namespace LangChain.Providers.Amazon.Bedrock; | ||
|
|
||
| public class Ai21LabJambaChatSettings : BedrockChatSettings | ||
| { | ||
| public new static Ai21LabJambaChatSettings Default { get; } = new() | ||
| { | ||
| StopSequences = ChatSettings.Default.StopSequences, | ||
| User = ChatSettings.Default.User, | ||
| UseStreaming = false, | ||
| Temperature = 0.7, | ||
| MaxTokens = 4000, | ||
| TopP = 0.8, | ||
| TopK = 0.0 | ||
| }; | ||
|
|
||
| /// <summary> | ||
| /// Calculate the settings to use for the request. | ||
| /// </summary> | ||
| /// <param name="requestSettings"></param> | ||
| /// <param name="modelSettings"></param> | ||
| /// <param name="providerSettings"></param> | ||
| /// <returns></returns> | ||
| /// <exception cref="InvalidOperationException"></exception> | ||
| public new static Ai21LabJambaChatSettings Calculate( | ||
| ChatSettings? requestSettings, | ||
| ChatSettings? modelSettings, | ||
| ChatSettings? providerSettings) | ||
| { | ||
| var requestSettingsCasted = requestSettings as Ai21LabJambaChatSettings; | ||
| var modelSettingsCasted = modelSettings as Ai21LabJambaChatSettings; | ||
| var providerSettingsCasted = providerSettings as Ai21LabJambaChatSettings; | ||
|
|
||
| return new Ai21LabJambaChatSettings | ||
| { | ||
| StopSequences = | ||
| requestSettingsCasted?.StopSequences ?? | ||
| modelSettingsCasted?.StopSequences ?? | ||
| providerSettingsCasted?.StopSequences ?? | ||
| Default.StopSequences ?? | ||
| throw new InvalidOperationException("Default StopSequences is not set."), | ||
| User = | ||
| requestSettingsCasted?.User ?? | ||
| modelSettingsCasted?.User ?? | ||
| providerSettingsCasted?.User ?? | ||
| Default.User ?? | ||
| throw new InvalidOperationException("Default User is not set."), | ||
| UseStreaming = | ||
| requestSettings?.UseStreaming ?? | ||
| modelSettings?.UseStreaming ?? | ||
| providerSettings?.UseStreaming ?? | ||
| Default.UseStreaming ?? | ||
| throw new InvalidOperationException("Default UseStreaming is not set."), | ||
| Temperature = | ||
| requestSettingsCasted?.Temperature ?? | ||
| modelSettingsCasted?.Temperature ?? | ||
| providerSettingsCasted?.Temperature ?? | ||
| Default.Temperature ?? | ||
| throw new InvalidOperationException("Default Temperature is not set."), | ||
| MaxTokens = | ||
| requestSettingsCasted?.MaxTokens ?? | ||
| modelSettingsCasted?.MaxTokens ?? | ||
| providerSettingsCasted?.MaxTokens ?? | ||
| Default.MaxTokens ?? | ||
| throw new InvalidOperationException("Default MaxTokens is not set."), | ||
| TopP = | ||
| requestSettingsCasted?.TopP ?? | ||
| modelSettingsCasted?.TopP ?? | ||
| providerSettingsCasted?.TopP ?? | ||
| Default.TopP ?? | ||
| throw new InvalidOperationException("Default TopP is not set."), | ||
| TopK = | ||
| requestSettingsCasted?.TopK ?? | ||
| modelSettingsCasted?.TopK ?? | ||
| providerSettingsCasted?.TopK ?? | ||
| Default.TopK ?? | ||
| throw new InvalidOperationException("Default TopK is not set."), | ||
| }; | ||
| } | ||
| } |
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Method
GenerateAsynclooks good!Consider adding error handling and logging to improve robustness and traceability.