/**
 * A single diagnostic line. `ok === undefined` renders as a neutral bullet
 * (informational), while `true`/`false` render as a tick/cross. A `hint` is
 * shown on the next line only for failed checks.
 */
export type Check = {
    label: string;
    ok?: boolean;
    detail?: string;
    hint?: string;
};
export declare function renderCheck(check: Check): string;
/** A yellow advisory line (non-fatal warnings). */
export declare function warningLine(message: string): string;
