import type { RpnInput, RpnResult } from './types.js';
/**
 * Calculate Risk Priority Number (RPN) for FMEA analysis
 * RPN = Severity x Occurrence x Detection
 * Each factor is on a 1-10 scale, resulting in RPN range of 1-1000
 *
 * @param input - RPN input parameters
 * @returns RPN analysis result
 */
export declare function rpn(input: RpnInput): RpnResult;
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