import type { CostContext, UsageStats } from '@mastra/core/observability';
import { PricingRegistry } from './pricing-registry.js';
import { TokenMetrics } from './types.js';
export declare function estimateCosts(args: {
    provider: string;
    model: string;
    usage: UsageStats;
}, pricingRegistry?: PricingRegistry | null): Map<TokenMetrics, CostContext>;
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