import type { LccInput, LccResult } from './types.js';
/**
 * Calculate life cycle cost (LCC) with present-value discounting
 *
 * @param input - LCC input parameters
 * @returns LCC result with total cost, present values, and annual equivalent cost
 * @throws RangeError if initialCost is negative, lifespan is not positive,
 *   or discountRate is outside [0, 1)
 */
export declare function lcc(input: LccInput): LccResult;
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