import { CharacteristicKey, CustomCharacteristicKey } from '../../model/enums.js';
import { CharacteristicType } from '../../model/types.js';
export declare function isCustomCharacteristic(key: CharacteristicKey): key is CustomCharacteristicKey;
export declare function CustomCharacteristic(key: CustomCharacteristicKey, Characteristic: CharacteristicType): unknown;