/**
 * Configuration for GQLDB Node.js driver.
 */
import * as tls from 'tls';
/** Configuration options for GqldbClient */
export interface GqldbConfig {
    /** Server hosts in format "host:port" */
    hosts: string[];
    /** Username for authentication */
    username?: string;
    /** Password for authentication */
    password?: string;
    /** Default graph to use */
    defaultGraph?: string;
    /** Query timeout in milliseconds (default 30000ms = 30s) */
    timeout?: number;
    /** Maximum receive message size in bytes (default 64MB) */
    maxRecvSize?: number;
    /** TLS options for secure connections */
    tlsOptions?: tls.ConnectionOptions;
    /** Connection pool size per host */
    poolSize?: number;
    /** Health check interval in milliseconds (default 30000ms = 30s) */
    healthCheckInterval?: number;
    /** Number of retries for failed requests */
    retryCount?: number;
    /** Delay between retries in milliseconds (default 100ms) */
    retryDelay?: number;
    /**
     * Optional stable per-client logical session id used by the
     * transaction-branch model (sent as `x-ultipa-session-id` metadata
     * when §2.1 opt-in is enabled in TRANSACTIONS_DRIVER_GUIDE.md).
     * When omitted, the driver auto-generates a random hex string at
     * client construction time.
     */
    sessionId?: string;
}
/** Default configuration values */
export declare const DEFAULT_CONFIG: Required<Omit<GqldbConfig, 'username' | 'password' | 'defaultGraph' | 'tlsOptions' | 'sessionId'>>;
/** Builder for creating GqldbConfig */
export declare class ConfigBuilder {
    private config;
    /** Set the server hosts */
    hosts(...hosts: string[]): this;
    /** Set the username for authentication */
    username(username: string): this;
    /** Set the password for authentication */
    password(password: string): this;
    /** Set the default graph */
    defaultGraph(graph: string): this;
    /** Set the query timeout in milliseconds */
    timeout(ms: number): this;
    /** Set the query timeout in seconds (convenience method) */
    timeoutSeconds(seconds: number): this;
    /** Set the maximum receive message size */
    maxRecvSize(bytes: number): this;
    /** Set TLS options */
    tls(options: tls.ConnectionOptions): this;
    /** Set the connection pool size per host */
    poolSize(size: number): this;
    /** Set the health check interval in milliseconds */
    healthCheckInterval(ms: number): this;
    /** Set the number of retries */
    retryCount(count: number): this;
    /** Set the delay between retries in milliseconds */
    retryDelay(ms: number): this;
    /** Build and return the configuration */
    build(): GqldbConfig;
}
/** Validate the configuration */
export declare function validateConfig(config: GqldbConfig): void;
/** Create a configuration with defaults */
export declare function createConfig(options?: Partial<GqldbConfig>): GqldbConfig;