/**
 * `olam kg savings` — cumulative KG-hit telemetry summary.
 *
 * Aggregates `/kg-data/savings.jsonl` (one append-only line per non-grep
 * /classify call) via the kg-service /savings endpoint. Output is a coarse
 * heuristic — see `SAVINGS_HEURISTIC` in packages/kg-service/src/server.py
 * for the per-layer model. Display always prefixes saved-token counts with
 * `~` so the approximation reads correctly.
 *
 * Surfaces:
 *   - Total hits + total estimated savings
 *   - Per-layer breakdown (L1 regex / L2 graph-probe / L4 embedding)
 *   - Per-workspace breakdown
 *   - First + last hit timestamps
 *
 * --json emits the raw response shape for monitoring pipelines.
 */
import type { Command } from 'commander';
export declare function registerKgSavingsCommand(kg: Command): void;
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