pub fn effective_max_level(config: &TelemetryConfig) -> Option<LevelFilter>Expand description
The effective max verbosity Telemetry::init would install for
config, honoring the RUST_LOG override. Round-4 estate feedback:
lets hosts verify filter configuration without installing anything.
Returns None when the resolved filter declares no maximum level
(e.g. a bare per-target directive with no global level).