import type { Metadata, ServerUnaryCall, TUnaryCallback } from '@grpc.ts/core';
import type { IGrpcServerProps } from '@grpc.ts/core/lib/interface';
import type { ISubscribeParams } from './interface';
type TCallback = () => void;
interface ICreateServiceReturnProps {
    strategy: GrpcServer;
}
interface IMessageHandlerProps<TData = unknown, TResult = unknown> {
    (data: TData, metadata: Metadata, call: ServerUnaryCall<unknown, unknown>, callback: TUnaryCallback<unknown>): Promise<TResult>;
}
type TOptions = IGrpcServerProps | IGrpcServerProps[];
export declare class GrpcServer {
    #private;
    constructor(props: TOptions);
    static createService(params: TOptions): ICreateServiceReturnProps;
    addHandler(pattern: ISubscribeParams & {
        isGrpc: boolean;
    }, callback: IMessageHandlerProps, isEventHandler?: boolean, _extras?: Record<string, any>): void;
    listen(callback: TCallback): Promise<void>;
    close(): Promise<void>;
}
export {};