esc (src/metrics.rs)

Rust module providing Prometheus metric names and exposition builder for metrics.

// Source: https://github.com/rtk-ai/rtk | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
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//! Prometheus exposition — one metrics formatter, meant to be shared with any
//! larger binary built on this crate.
//!
//! This module owns two things so neither gets duplicated downstream:
//!   1. the **metric name constants** ([`names`]) — so a Grafana dashboard
//!      built against this daemon keeps working against a bigger deployment
//!      of the same crate, and
//!   2. the **text-format writer** ([`Exposition`]) — HELP/TYPE headers,
//!      sample lines and label escaping, in one place.
//!
//! A consumer supplies only its own NUMBERS, and may emit extra families
//! through th

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