import type { YieldInput, YieldResult } from './types.js';
/**
 * Calculate First Pass Yield (FPY) and Rolled Throughput Yield (RTY)
 *
 * FPY = Good Units / Total Units (per step)
 * RTY = Product of all FPY values (cumulative yield)
 *
 * @param input - Yield input parameters
 * @returns Yield analysis result
 */
export declare function yieldCalc(input: YieldInput): YieldResult;
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