import type { LootEntry } from "./lootTable.js";
import type { LootModifier } from "./lootPipeline.js";
/** Caller-authored weighting curve; item ids, quality tiers and balance never live in the modifier. */
export interface TimeScaledRarityOptions {
    id?: string;
    ramp: (entry: LootEntry, hours: number) => number;
}
/**
 * Multiply weighted odds (or independent chances, clamped to one) by a caller-authored elapsed-time
 * curve. Keeps source tables unchanged and uses the existing pipeline's modifier provenance.
 * Elapsed time and multipliers must be finite and nonnegative; invalid curves reject the roll.
 *
 * @capability time-scaled-loot shape loot odds by elapsed hours with caller-authored curves and pipeline provenance
 */
export declare function timeScaledRarity<TCtx extends {
    elapsedMs: number;
}>(options: TimeScaledRarityOptions): LootModifier<TCtx>;