/**
 * @license
 * Copyright 2026 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
import type { ModelPricing } from "@workglow/ai";
/**
 * Resolve a model's effective rate card: the one its repository record declares,
 * merged field by field over the provider's published card.
 *
 * Memoized per model id for the process lifetime — rate cards do not change
 * mid-run, and the CLI re-reads usage on every snapshot, so an uncached lookup
 * would re-hit storage once per stream event.
 */
export declare function lookupModelPricing(modelId: string | undefined): Promise<ModelPricing | undefined>;
/** Test-only: drop the memo so a suite can re-register models with new rates. */
export declare function clearModelPricingCache(): void;