/**
 * Browser API support detection utilities
 * Centralized support checking to avoid duplication across modules
 */
import type { Serial, USB } from "../types/port-discovery.js";
declare global {
    interface Navigator {
        serial: Serial;
        usb: USB;
    }
}
/**
 * Check if Web Serial API is available in the current browser
 * @returns true if Web Serial is supported, false otherwise
 */
export declare function isWebSerialSupported(): boolean;
/**
 * Check if WebUSB API is available in the current browser
 * @returns true if WebUSB is supported, false otherwise
 */
export declare function isWebUSBSupported(): boolean;
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