Return the last N parseable rlg (RustLogs) records from a log file, newest last. Use this to glance at the most recent activity in a log; use filter_log when you need to select records by level or component, and summarize_errors for an aggregated error count.

Select rlg records by minimum severity and/or component and render them in any rlg LogFormat. Use this to narrow a log to what matters (e.g. WARN-and-above for one service); use tail_log for a raw recent slice and summarize_errors when you only need per-component error totals.

Group ERROR-and-above rlg records by component and count them, giving a quick error taxonomy for triage. Use this for an at-a-glance failure breakdown; use filter_log when you need the underlying records rather than counts.