/**
 * The terminal, not KONECK, supplies the tab's icon; OSC 0 supplies its useful text.
 * It works in Windows Terminal, GNOME Terminal, iTerm, and most terminal multiplexers.
 */
export declare function terminalTitle(cwd: string, working?: boolean, frame?: number): string;
/** Write one title update only for an interactive terminal. */
export declare function setTerminalTitle(output: {
    isTTY?: boolean;
    write: (text: string) => unknown;
}, cwd: string, working?: boolean, frame?: number): void;
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