/**
 * Pricing module.
 *
 * - Bundled rates live in pricing.json (loaded once on first use).
 * - Consumers can override via update_pricing() or set_pricing_overrides() at runtime.
 * - compute_cost() takes a UsageInfo and returns it enriched with cost_usd + pricing_applied.
 *
 * Pricing key convention: "<provider>/<model>" (lowercase provider).
 */
import type { PricingEntry, PricingTable, UsageInfo } from "./types.js";
import type { HazoConnect } from "../hazo_connect/types.js";
import type { Logger } from "../llm_api/types.js";
/** Idempotent. Reads the bundled pricing.json into the in-memory table. */
export declare function load_pricing(): void;
/** Test helper — clears the in-memory cache so the next load_pricing() re-reads. */
export declare function reset_pricing_for_test(): void;
/** Look up the pricing entry for "<provider>/<model>". Returns null if absent. */
export declare function get_pricing(key: string): PricingEntry | null;
/** Override one entry at runtime. */
export declare function update_pricing(key: string, entry: PricingEntry): void;
/** Merge multiple overrides (used by initialize_llm_api({ pricing_overrides })). */
export declare function set_pricing_overrides(overrides: PricingTable): void;
/**
 * Compute cost for a usage record using the current pricing table.
 *
 * Returns a NEW UsageInfo with cost_usd + pricing_applied populated when possible,
 * or with both undefined when the model is unpriced.
 */
export declare function compute_cost(usage: UsageInfo): UsageInfo;
export interface RecomputeOpts {
    connect: HazoConnect;
    logger: Logger;
    /** ISO date — only recompute rows created at or after this timestamp. */
    from?: string;
    /** ISO date — only recompute rows created at or before this timestamp. */
    to?: string;
    /** Restrict to specific model names. */
    models?: string[];
    /** When true, report changes but do not write. Default false. */
    dry_run?: boolean;
}
export interface RecomputeResult {
    total_inspected: number;
    updated: number;
    /** Populated in dry_run mode — number of rows that would have been updated. */
    would_update: number;
}
export declare function recompute_costs(opts: RecomputeOpts): Promise<RecomputeResult>;
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