import { OnModuleDestroy, OnModuleInit } from '@nestjs/common';
import { AxiosRequestConfig } from 'axios';
import { NacosInstance, NacosInstanceOptions, NacosNamingOptions } from './nacos.interface';
export declare class NacosNamingService implements OnModuleInit, OnModuleDestroy {
    private logger;
    private namingClient;
    constructor(options: NacosNamingOptions);
    onModuleInit(): Promise<void>;
    onModuleDestroy(): Promise<void>;
    registerInstance(serviceName: string, instance: NacosInstanceOptions, groupName?: string): Promise<void>;
    deregisterInstance(serviceName: string, instance: NacosInstanceOptions, groupName?: string): Promise<void>;
    getAllInstances(serviceName: string, groupName?: string, clusters?: string, subscribe?: boolean): Promise<NacosInstance[]>;
    selectInstances(serviceName: string, groupName?: string, clusters?: string, healthy?: boolean, subscribe?: boolean): Promise<NacosInstance[]>;
    getServerStatus(): Promise<"UP" | "DOWN">;
    subscribe(info: string | {
        serviceName: string;
        groupName?: string;
        clusters?: string;
    }, listener: (instances: NacosInstance[]) => void): any;
    unSubscribe(info: string | {
        serviceName: string;
        groupName?: string;
        clusters?: string;
    }, listener: (instances: NacosInstance[]) => void): any;
    selectOneHealthyInstance(serviceName: string, groupName?: string, clusters?: string): Promise<NacosInstance>;
    axiosRequestInterceptor(matchReg: RegExp): (config: AxiosRequestConfig) => Promise<AxiosRequestConfig<any>>;
}
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