/**
 * Fetch reference SVGs from JLCPCB/EasyEDA API
 *
 * API Endpoint: https://easyeda.com/api/products/{LCSC_CODE}/svgs
 *
 * Returns pre-rendered SVGs for both symbol (docType: 2) and footprint (docType: 4)
 */
import type { ReferenceSVG } from './types.js';
/**
 * Fetch reference SVG from JLCPCB/EasyEDA API
 *
 * @param lcscCode - LCSC part number (e.g., 'C22467599')
 * @returns Reference SVG data including symbol and footprint
 */
export declare function fetchReferenceSVG(lcscCode: string): Promise<ReferenceSVG>;
/**
 * Fetch multiple reference SVGs in parallel
 *
 * @param lcscCodes - Array of LCSC part numbers
 * @param concurrency - Max parallel requests (default: 5)
 * @returns Map of LCSC code to reference SVG
 */
export declare function fetchReferenceSVGs(lcscCodes: string[], concurrency?: number): Promise<Map<string, ReferenceSVG | Error>>;
/**
 * Convert EasyEDA coordinates to mm
 * EasyEDA uses 10mil units (0.254mm per unit)
 */
export declare function eeToMm(value: number): number;
/**
 * Extract viewBox dimensions from SVG string
 */
export declare function extractViewBox(svg: string): {
    x: number;
    y: number;
    width: number;
    height: number;
} | null;
/**
 * Check if a component has a footprint available
 */
export declare function hasFootprint(lcscCode: string): Promise<boolean>;
/**
 * Check if a component has a symbol available
 */
export declare function hasSymbol(lcscCode: string): Promise<boolean>;
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