liter-llm 1.7.3

Universal LLM API client — 142+ providers, streaming, tool calling. Rust-powered, type-safe, compiled.
Documentation 
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/// Canonical usage events and pluggable sinks.
pub mod usage;

pub use usage::{
    CacheState, LoggingUsageSink, MultiUsageSink, UsageEvent, UsageEventOutcome, UsageSink, UsageSinkErased,
    UsageSinkError,
};