import type { StencilInput, StencilResult } from './types.js';
/**
 * Calculate stencil aperture area ratio and aspect ratio
 * @throws {RangeError} Aperture width and stencil thickness must be positive
 * @throws {RangeError} Aperture length must be positive for rectangular apertures
 * @param input - Aperture dimensions, stencil thickness, and component type
 * @returns Area ratio, aspect ratio, and pass/fail status
 * @reference IPC-7525 — Stencil Design Guidelines (area ratio >= 0.66, aspect ratio >= 1.5 recommended minimums)
 */
export declare function stencilAperture(input: StencilInput): StencilResult;
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