import usb from 'node-hid';
import { BlinkstickSync } from '../../core/blinkstick.sync';
import { BlinkstickAsync } from '../../core';
/**
 * Find BlinkSticks using a filter, using synchronous USB device enumeration.
 * @category Discovery
 */
export declare function findBlinkSticks(filter?: (device: usb.Device) => boolean): BlinkstickSync[];
/**
 * Find BlinkSticks using a filter, using asynchronous USB device enumeration.
 * @param filter
 * @category Discovery
 */
export declare function findBlinkSticksAsync(filter?: (device: usb.Device) => boolean): Promise<BlinkstickAsync[]>;
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