import { ForwardedPortConfig } from 'tabby-ssh';
/**
 * Formatted here rather than through `ForwardedPort.toString()`: inheriting a
 * display helper from Tabby also inherits whatever it gets wrong, and a wrong
 * rendering raises no error (piège #35). The shapes follow ssh(1)'s own
 * -L/-R/-D notation, which is what anyone reading a tunnel list expects.
 *
 * Shared between the tree's own "Tunnels actifs" section
 * (sidebarTree.component.ts) and the tunnel editor (tunnelsModal.component.ts)
 * — pulled out of the tree component so the modal does not have to import it
 * just to reach this.
 */
export declare function formatTunnel(forward: ForwardedPortConfig): string;
/**
 * Identity of a forward across the config/live boundary. The two sides are
 * different objects — Tabby's live session builds its own `ForwardedPort`
 * from the config values — so they can only be matched on what they
 * describe. `description` is left out: it is a label, editing it does not
 * make it a different tunnel.
 */
export declare function tunnelKey(forward: ForwardedPortConfig): string;