/**
 * The Cotal join link — the onboarding half of the wire contract (v0).
 *
 *   cotal://[token@]host[:port]/space[?channel=a,b]    plaintext
 *   cotals://[token@]host[:port]/space[?channel=a,b]   TLS required
 *   cotal://user:pass@host/space                       user/password auth
 *
 * One copy-pasteable string carries server + credentials + space, so a peer
 * joins with a single value. The nats.js client does NOT read credentials from
 * a URL, so we parse them out here and hand them to connect() as options.
 */
export interface JoinLink {
    /** nats:// server URL (auth is carried separately, never in this string). */
    servers: string;
    space: string;
    /** Channels from the link, if any (?channel=a,b). */
    channels?: string[];
    /** Whether a TLS connection is required. */
    tls: boolean;
    /** Bare token (userinfo without a password). */
    token?: string;
    /** Username (userinfo with a password). */
    user?: string;
    pass?: string;
}
/** Parse a `cotal://` / `cotals://` join link. Throws on anything malformed. */
export declare function parseJoinLink(link: string): JoinLink;
/** Build a join link from its parts (for an operator handing one out). */
export declare function formatJoinLink(opts: {
    host: string;
    port?: number;
    space: string;
    token?: string;
    tls?: boolean;
    channels?: string[];
}): string;
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