import * as grpc from "@grpc/grpc-js";
import { DaprClient as GrpcDaprClient } from "../../../proto/dapr/proto/runtime/v1/dapr_grpc_pb";
import IClient from "../../../interfaces/Client/IClient";
import { DaprClientOptions } from "../../../types/DaprClientOptions";
export default class GRPCClient implements IClient {
    readonly options: DaprClientOptions;
    private isInitialized;
    private readonly client;
    private readonly clientCredentials;
    private readonly logger;
    private readonly grpcClientOptions;
    private daprEndpoint;
    constructor(options: Partial<DaprClientOptions>);
    getClient(requiresInitialization?: boolean): Promise<GrpcDaprClient>;
    getClientCredentials(): grpc.ChannelCredentials;
    getGrpcClientOptions(): grpc.ClientOptions;
    private generateEndpoint;
    private generateCredentials;
    private generateChannelOptions;
    private generateInterceptors;
    setIsInitialized(isInitialized: boolean): void;
    getIsInitialized(): boolean;
    stop(): Promise<void>;
    _startWaitForClientReady(): Promise<void>;
    _startAwaitSidecarStarted(): Promise<void>;
    /**
     * Ensure the client is started, this takes care of:
     * 1. Making sure the sidecar is started
     * 2. Making sure the connection is established (e.g. in gRPC)
     * 3. Making sure the client is ready to be used
     */
    start(): Promise<void>;
}