/**
 * log10x_savings — pipeline savings summary.
 *
 * Ported from the Grafana ROI analytics dashboard's canonical formula:
 *   edgeSavings    = (inputBytes - emittedBytes) × analyzerCost
 *   retrieverSavings = indexedBytes × (analyzerCost - storageCost)
 *                   - streamedBytes × analyzerCost
 *   totalSavings   = max(0, edgeSavings) + max(0, retrieverSavings)
 *
 * The earlier version of this file used all_events_summaryBytes_total as the
 * output metric for every stage, which over-counted by a wide margin because
 * emitted/indexed/streamed are tracked on separate metrics.
 *
 * Retriever indexed metric has high per-series cardinality (~12k active series
 * per env because of the index_file label). A single `sum(increase(...[7d]))`
 * query blows the Prometheus server's query resource budget and returns 503.
 * The workaround is to chunk the window into N × 1d queries in parallel and
 * sum the results client-side — each 1d increase is cheap enough for the
 * server to complete, and the total is mathematically equivalent so long as
 * each chunk is computed per-series before summing (which preserves counter
 * reset handling).
 */
import { z } from 'zod';
import type { EnvConfig } from '../lib/environments.js';
import { type StructuredOutput } from '../lib/output-types.js';
/** Origin of the analyzer $/GB used in this run. Drives dollar-gating in headlines + markdown. */
export type RateSource = 'list_price' | 'customer_supplied' | 'unset';
export declare const savingsSchema: {
    timeRange: z.ZodDefault<z.ZodEnum<["15m", "1h", "6h", "24h", "1d", "7d", "30d"]>>;
    analyzerCost: z.ZodOptional<z.ZodNumber>;
    effective_ingest_per_gb: z.ZodOptional<z.ZodNumber>;
    storageCost: z.ZodOptional<z.ZodNumber>;
    siem_lens: z.ZodOptional<z.ZodEnum<[import("./poc-from-siem.js").RegistrySiemId, ...import("./poc-from-siem.js").RegistrySiemId[]]>>;
    environment: z.ZodOptional<z.ZodString>;
    view: z.ZodOptional<z.ZodDefault<z.ZodLiteral<"summary">>>;
};
export declare function executeSavings(args: {
    timeRange?: string;
    analyzerCost?: number;
    effective_ingest_per_gb?: number;
    storageCost?: number;
    siem_lens?: string;
    view?: 'summary';
}, env: EnvConfig): Promise<string | StructuredOutput>;