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TokenTrackingLLM

Struct TokenTrackingLLM 

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pub struct TokenTrackingLLM<L: BaseChatModel> { /* private fields */ }
Expand description

带 Token 统计的 LLM 包装器

包装任意 BaseChatModel,自动累计 prompt / completion token 用量, 优先使用 LLM 返回的真实 usage,无则用 tiktoken 估算。

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impl<L: BaseChatModel> TokenTrackingLLM<L>

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pub fn new(llm: L, counter: Arc<dyn TokenCounter>) -> Self

用自定义计数器包装 LLM。

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pub fn for_openai(llm: L) -> Result<Self, TokenCounterError>

用 Tiktoken(cl100k_base)计数器包装

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pub async fn chat( &self, messages: Vec<Message>, config: Option<RunnableConfig>, ) -> Result<LLMResult, L::Error>

调用 LLM 并统计 token

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pub async fn get_usage(&self) -> TrackerTokenUsage

获取累计用量

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pub async fn reset(&self)

重置统计

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pub async fn estimate_cost(&self, pricing: &ModelPricing) -> f64

估算成本(美元)

Auto Trait Implementations§

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impl<L> !RefUnwindSafe for TokenTrackingLLM<L>

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impl<L> !UnwindSafe for TokenTrackingLLM<L>

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impl<L> Freeze for TokenTrackingLLM<L>
where L: Freeze,

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impl<L> Send for TokenTrackingLLM<L>

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impl<L> Sync for TokenTrackingLLM<L>

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impl<L> Unpin for TokenTrackingLLM<L>
where L: Unpin,

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impl<L> UnsafeUnpin for TokenTrackingLLM<L>
where L: UnsafeUnpin,

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impl<T> Any for T
where T: 'static + ?Sized,

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