export type WebSocketEndpoint = "sql" | "tmq";
export declare const WS_SQL_ENDPOINT: WebSocketEndpoint;
export declare const WS_TMQ_ENDPOINT: WebSocketEndpoint;
export declare class Address {
    host: string;
    port: number;
    constructor(host: string, port: number);
}
export declare class Dsn {
    scheme: string;
    username: string;
    password: string;
    addresses: Address[];
    database: string;
    params: Map<string, string>;
    endpoint: WebSocketEndpoint;
    constructor(scheme: string, username: string, password: string, addresses: Address[], database: string, params: Map<string, string>, endpoint?: WebSocketEndpoint);
    toString(): string;
    path(): string;
    isAdapterHA(): boolean;
}
/**
 * Parse a multi-host TDengine WebSocket URL.
 * Format: ws://username:password@host1:port1,host2:port2,[::1]:port3/db?key=value
 */
export declare function parse(url: string): Dsn;
export declare const DEFAULT_PORT = 6041;
export declare const CLOUD_DEFAULT_PORT = 443;
export declare function isCloudServiceHost(host: string): boolean;
export declare function getDefaultPortForHost(host: string): number;
export declare function parseDiscoveredEndpoints(instances: string[]): Address[];
export declare function mergeAddresses(existing: Address[], discovered: Address[]): Address[];
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