import { FeatureService } from '@diia-inhouse/features';
import type { HealthCheck } from '@diia-inhouse/healthcheck';
import { HealthCheckResult, Logger, OnDestroy, OnHealthCheck, OnInit } from '@diia-inhouse/types';
import { ActionExecutor } from '../actionExecutor.js';
import { AppAction, BaseConfig, GrpcServiceStatus } from '../interfaces/index.js';
import { OnInitResults } from '../interfaces/onInitResults.js';
export declare class GrpcService implements OnInit, OnDestroy, OnHealthCheck {
    private readonly config;
    private readonly actionList;
    private readonly logger;
    private readonly actionExecutor;
    private readonly systemServiceName;
    private readonly serviceName;
    private readonly healthCheck;
    private readonly featureFlag;
    private readonly grpcServer;
    private readonly streamConnections;
    private readonly httpCodeToGrpcCode;
    constructor(config: BaseConfig, actionList: AppAction[], logger: Logger, actionExecutor: ActionExecutor, systemServiceName: string, serviceName: string, healthCheck: HealthCheck | undefined, featureFlag?: FeatureService | null);
    onHealthCheck(): Promise<HealthCheckResult<GrpcServiceStatus>>;
    onInit(): Promise<OnInitResults['grpcService']>;
    onDestroy(): Promise<void>;
    private provideGrpcServiceImplementation;
    private getMethodType;
    private provideStreamGrpcMethodImplementation;
    private provideGrpcMethodImplementation;
    private getActionInstance;
    private executeAction;
    private provideAppActions;
    private prepareActHeadersFromGrpcInput;
    private prepareActSessionFromGrpcInput;
    private hasMetadataProperty;
    private getDefaultActionVersion;
    private mapApiErrorToRpcError;
    private serializeApiError;
    private isPlainObject;
    private stripSyntheticOneofFields;
    private prepareServerErrorResponse;
}