import type { Characteristic, Peripheral } from '@stoprocent/noble';
import type { OneKeyDeviceInfoBase } from '@onekeyfe/hd-transport';
export interface DeviceInfo extends OneKeyDeviceInfoBase {
    id: string;
    name: string;
    state: string;
    mtu?: number;
}
export interface CharacteristicPair {
    write: Characteristic;
    notify: Characteristic;
}
export interface NobleModule {
    state: string;
    startScanning(serviceUUIDs: string[], allowDuplicates: boolean, callback?: (error?: Error) => void): void;
    stopScanning(callback?: () => void): void;
    stop(): void;
    cancelConnect?(id: string): void;
    on(event: 'stateChange', listener: (state: string) => void): void;
    on(event: 'discover', listener: (peripheral: Peripheral) => void): void;
    removeListener(event: 'stateChange', listener: (state: string) => void): void;
    removeListener(event: 'discover', listener: (peripheral: Peripheral) => void): void;
}
export interface Logger {
    info(message: string, ...args: any[]): void;
    debug(message: string, ...args: any[]): void;
    warn(message: string, ...args: any[]): void;
    error(message: string, ...args: any[]): void;
}
export declare function safeLog(logger: Logger | null, level: 'info' | 'debug' | 'error', message: string, ...args: any[]): void;
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