/**
 * @license
 * Copyright 2026 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
import React from "react";
/**
 * A live region that grows to fit its content, never shrinks on its own, and
 * never outgrows the terminal.
 *
 * The no-shrink rule is the point. A block sized to its content drags
 * everything below it — the footer most of all — up the screen every time a
 * list gets shorter, and a run whose footer is a moving target is a run nobody
 * can read while it works. Here the height is a high-water mark: it rises as
 * rows arrive, holds when they leave (the extra rows are simply blank), and
 * comes back down only when the window itself does.
 *
 * When content still overflows, the region shows its tail — the live work sorts
 * last — and draws a one-column gutter beside it. The gutter costs no rows,
 * which matters most exactly when rows are what ran out.
 */
export declare function ScrollRegion({ budgetRows, children, }: {
    /** Rows the region may occupy at most; recomputed by the caller on resize. */
    readonly budgetRows: number;
    readonly children?: React.ReactNode;
}): React.ReactElement;