import type { CompressedAirCostInput, CompressedAirCostResult } from './types.js';
/**
 * Calculate compressed air production cost
 *
 * Electricity cost = compressor power (kW) * running hours * electricity rate ($/kWh)
 * Total cost = electricity cost + maintenance cost
 * Cost per m³ = total cost / air output (m³)
 * Cost per ft³ = cost per m³ / 35.3147 (m³ to ft³ conversion)
 *
 * @param input - Compressed air cost input parameters
 * @returns Compressed air cost result
 * @throws RangeError if compressorPower, runningHours, or airOutput is not positive
 */
export declare function compressedAirCost(input: CompressedAirCostInput): CompressedAirCostResult;
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