import type { ViaInput, ViaResult } from './types.js';
/**
 * Calculate PCB via current capacity using IPC-2152 approximation
 *
 * The cross-sectional area is the copper ring: π × [(r_outer)² - (r_inner)²]
 * Where r_outer = holeDiameter/2 + platingThickness and r_inner = holeDiameter/2
 *
 * @param input - Via hole diameter, plating thickness, via length, and temp rise
 * @returns Via current capacity and related properties
 * @throws RangeError if holeDiameter, platingThickness, viaLength, or tempRise
 *   is not positive
 */
export declare function viaCurrent(input: ViaInput): ViaResult;
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