import type { MeterConfig, ModelPrice, UsageInput } from "./types.js";
/**
 * Resolve a price for a model id. Config-provided prices win over defaults; matching tries
 * exact id, then prefix (table id is a prefix of the model), then substring either way.
 */
export declare function resolvePrice(model: string, config?: MeterConfig): ModelPrice | undefined;
/** Compute the USD cost of a call given a price. Unknown cache rates count as zero. */
export declare function computeCost(usage: Pick<UsageInput, "inputTokens" | "outputTokens" | "cacheReadTokens" | "cacheWriteTokens">, price: ModelPrice): number;