/**
 * Shared context for all service classes.
 * Contains gRPC clients, managers, and configuration.
 */
import * as grpc from '@grpc/grpc-js';
import { GqldbConfig } from '../config';
import { SessionManager } from '../session';
import { TransactionManager } from '../transaction';
/**
 * Service client types for gRPC communication.
 */
export interface ServiceClients {
    sessionService: grpc.Client;
    queryService: grpc.Client;
    graphService: grpc.Client;
    transactionService: grpc.Client;
    dataService: grpc.Client;
    healthService: grpc.Client;
    adminService: grpc.Client;
    bulkImportService: grpc.Client;
}
/**
 * Service context holds shared dependencies for all service classes.
 */
export declare class ServiceContext {
    readonly config: GqldbConfig;
    readonly sessions: SessionManager;
    readonly txManager: TransactionManager;
    /**
     * Not readonly: the client rebuilds the underlying gRPC channels
     * on transport-level errors (UNAVAILABLE / connection reset) by
     * mutating this in place. See GqldbClient.forceReconnectAll.
     */
    clients: ServiceClients;
    /**
     * Stable per-client logical session id sent as the
     * `x-ultipa-session-id` gRPC metadata header. Empty string omits the
     * header (legacy behavior). See TRANSACTIONS_DRIVER_GUIDE.md §2.1.
     */
    readonly clientSessionId: string;
    constructor(config: GqldbConfig, sessions: SessionManager, txManager: TransactionManager, 
    /**
     * Not readonly: the client rebuilds the underlying gRPC channels
     * on transport-level errors (UNAVAILABLE / connection reset) by
     * mutating this in place. See GqldbClient.forceReconnectAll.
     */
    clients: ServiceClients, 
    /**
     * Stable per-client logical session id sent as the
     * `x-ultipa-session-id` gRPC metadata header. Empty string omits the
     * header (legacy behavior). See TRANSACTIONS_DRIVER_GUIDE.md §2.1.
     */
    clientSessionId?: string);
    /**
     * Get session metadata for authenticated requests.
     */
    getSessionMetadata(): grpc.Metadata;
    /**
     * Update session activity timestamp.
     */
    updateActivity(): void;
}