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Merged
merged 1 commit into from
May 16, 2025
Merged

Update to stable Microsoft.Extensions.AI.Abstractions #1190

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59 changes: 31 additions & 28 deletions LLama/Extensions/LLamaExecutorExtensions.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,12 @@ public async Task<ChatResponse> GetResponseAsync(
text.Append(token);
}

return new(new ChatMessage(ChatRole.Assistant, text.ToString()))
var message = new ChatMessage(ChatRole.Assistant, text.ToString())
{
MessageId = Guid.NewGuid().ToString("N"),
};

return new(message)
{
CreatedAt = DateTime.UtcNow,
};
Expand All @@ -83,11 +88,13 @@ public async IAsyncEnumerable<ChatResponseUpdate> GetStreamingResponseAsync(
{
var result = _executor.InferAsync(CreatePrompt(messages), CreateInferenceParams(options), cancellationToken);

string messageId = Guid.NewGuid().ToString("N");
await foreach (var token in _outputTransform.TransformAsync(result))
{
yield return new(ChatRole.Assistant, token)
{
CreatedAt = DateTime.UtcNow,
MessageId = messageId,
};
}
}
Expand Down Expand Up @@ -124,37 +131,33 @@ private string CreatePrompt(IEnumerable<ChatMessage> messages)
}

/// <summary>Convert the chat options to inference parameters.</summary>
private static InferenceParams? CreateInferenceParams(ChatOptions? options)
private InferenceParams CreateInferenceParams(ChatOptions? options)
{
List<string> antiPrompts = new(s_antiPrompts);
if (options?.AdditionalProperties?.TryGetValue(nameof(InferenceParams.AntiPrompts), out IReadOnlyList<string>? anti) is true)
{
antiPrompts.AddRange(anti);
}
InferenceParams ip = options?.RawRepresentationFactory?.Invoke(this) as InferenceParams ?? new();

return new()
ip.AntiPrompts = [.. s_antiPrompts, .. ip.AntiPrompts];
ip.MaxTokens = options?.MaxOutputTokens ?? 256; // arbitrary upper limit
ip.SamplingPipeline = new DefaultSamplingPipeline()
{
AntiPrompts = antiPrompts,
TokensKeep = options?.AdditionalProperties?.TryGetValue(nameof(InferenceParams.TokensKeep), out int tk) is true ? tk : s_defaultParams.TokensKeep,
MaxTokens = options?.MaxOutputTokens ?? 256, // arbitrary upper limit
SamplingPipeline = new DefaultSamplingPipeline()
{
FrequencyPenalty = options?.FrequencyPenalty ?? s_defaultPipeline.FrequencyPenalty,
PresencePenalty = options?.PresencePenalty ?? s_defaultPipeline.PresencePenalty,
PreventEOS = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.PreventEOS), out bool eos) is true ? eos : s_defaultPipeline.PreventEOS,
PenalizeNewline = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.PenalizeNewline), out bool pnl) is true ? pnl : s_defaultPipeline.PenalizeNewline,
RepeatPenalty = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.RepeatPenalty), out float rp) is true ? rp : s_defaultPipeline.RepeatPenalty,
PenaltyCount = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.PenaltyCount), out int rpc) is true ? rpc : s_defaultPipeline.PenaltyCount,
Grammar = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.Grammar), out Grammar? g) is true ? g : s_defaultPipeline.Grammar,
MinKeep = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.MinKeep), out int mk) is true ? mk : s_defaultPipeline.MinKeep,
MinP = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.MinP), out float mp) is true ? mp : s_defaultPipeline.MinP,
Seed = options?.Seed is long seed ? (uint)seed : (uint)(t_random ??= new()).Next(),
Temperature = options?.Temperature ?? s_defaultPipeline.Temperature,
TopP = options?.TopP ?? s_defaultPipeline.TopP,
TopK = options?.TopK ?? s_defaultPipeline.TopK,
TypicalP = options?.AdditionalProperties?.TryGetValue(nameof(DefaultSamplingPipeline.TypicalP), out float tp) is true ? tp : s_defaultPipeline.TypicalP,
},
FrequencyPenalty = options?.FrequencyPenalty ?? (ip.SamplingPipeline as DefaultSamplingPipeline)?.FrequencyPenalty ?? s_defaultPipeline.FrequencyPenalty,
PresencePenalty = options?.PresencePenalty ?? (ip.SamplingPipeline as DefaultSamplingPipeline)?.PresencePenalty ?? s_defaultPipeline.PresencePenalty,
PreventEOS = (ip.SamplingPipeline as DefaultSamplingPipeline)?.PreventEOS ?? s_defaultPipeline.PreventEOS,
PenalizeNewline = (ip.SamplingPipeline as DefaultSamplingPipeline)?.PenalizeNewline ?? s_defaultPipeline.PenalizeNewline,
RepeatPenalty = (ip.SamplingPipeline as DefaultSamplingPipeline)?.RepeatPenalty ?? s_defaultPipeline.RepeatPenalty,
PenaltyCount = (ip.SamplingPipeline as DefaultSamplingPipeline)?.PenaltyCount ?? s_defaultPipeline.PenaltyCount,
Grammar = (ip.SamplingPipeline as DefaultSamplingPipeline)?.Grammar ?? s_defaultPipeline.Grammar,
GrammarOptimization = (ip.SamplingPipeline as DefaultSamplingPipeline)?.GrammarOptimization ?? s_defaultPipeline.GrammarOptimization,
LogitBias = (ip.SamplingPipeline as DefaultSamplingPipeline)?.LogitBias ?? s_defaultPipeline.LogitBias,
MinKeep = (ip.SamplingPipeline as DefaultSamplingPipeline)?.MinKeep ?? s_defaultPipeline.MinKeep,
MinP = (ip.SamplingPipeline as DefaultSamplingPipeline)?.MinP ?? s_defaultPipeline.MinP,
Seed = options?.Seed is long seed ? (uint)seed : (uint)(t_random ??= new()).Next(),
Temperature = options?.Temperature ?? s_defaultPipeline.Temperature,
TopP = options?.TopP ?? s_defaultPipeline.TopP,
TopK = options?.TopK ?? s_defaultPipeline.TopK,
TypicalP = (ip.SamplingPipeline as DefaultSamplingPipeline)?.TypicalP ?? s_defaultPipeline.TypicalP,
};

return ip;
}

/// <summary>A default transform that appends "Assistant: " to the end.</summary>
Expand Down
2 changes: 1 addition & 1 deletion LLama/LLamaSharp.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@
<ItemGroup>
<PackageReference Include="CommunityToolkit.HighPerformance" Version="8.4.0" />
<PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="9.0.3" />
<PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.5.0-preview.1.25262.9" />
<PackageReference Include="Microsoft.Extensions.AI.Abstractions" Version="9.5.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="9.0.3" />
<PackageReference Include="System.Numerics.Tensors" Version="9.0.3" />
</ItemGroup>
Expand Down
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