import type { ThermalComfortInput, ThermalComfortResult } from './types.js';
/**
 * PMV/PPD Thermal Comfort — ISO 7730 / Fanger's Model
 *
 * @formula
 *   - PMV = f(M, W, Icl, ta, tr, var, pa) with iterative tcl solve
 *   - PPD = 100 − 95 × exp(−0.03353×PMV⁴ − 0.2179×PMV²)
 *
 * @reference ISO 7730:2005 — Ergonomics of the thermal environment
 * @reference ASHRAE Standard 55-2020
 * @reference pythermalcomfort reference implementation
 *
 * @throws {RangeError} relativeHumidity outside 0–100, metabolicRate ≤ 0,
 *   clothingInsulation < 0, or airVelocity < 0.
 * @remarks Air and radiant temperatures are in °C and may be negative, so they
 *   are not range-checked.
 */
export declare function thermalComfort(input: ThermalComfortInput): ThermalComfortResult;
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