export interface HostInfo {
    host: string;
    port: number;
}
export interface ParsedUrl {
    hosts: HostInfo[];
    scheme: string;
    username: string;
    password: string;
    database: string;
    params: Map<string, string>;
}
/**
 * Parse a multi-host TDengine WebSocket URL.
 * Format: ws://username:password@host1:port1,host2:port2,[::1]:port3/db?key=value
 */
export declare function parseMultiHostUrl(url: string): ParsedUrl;
/**
 * Build a single-host URL from parsed components + a specific host.
 * Used by ConnectionManager to create WebSocketConnector URLs.
 */
export declare function buildHostUrl(parsed: ParsedUrl, host: HostInfo, extraParams?: Map<string, string>): URL;
/**
 * Extract retry options from parsed URL params.
 */
export declare function extractRetryOptions(params: Map<string, string>): {
    retries?: number;
    retryBackoffMs?: number;
    retryBackoffMaxMs?: number;
    resendWrite?: boolean;
};
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