import "./page_header.css";
import type * as React from "react";
import type { ReactNode } from "react";
import { useRender } from "@base-ui/react/use-render";
import { type StyleProps } from "./style_props";
export interface PageHeaderProps extends StyleProps {
    /** Optional only so the shell can delegate a description-only band. */
    title?: string;
    description?: string | null;
    /** How many rows the page holds, as a `Count` beside the title — never written into it. */
    count?: number;
    /** The nav row above the title — breadcrumbs, a back control, row status. */
    left?: ReactNode;
    right?: ReactNode;
    /** A control that reframes the page (a panel toggle, a view switch), right after the title and read as
     *  part of the heading; `actions` act on the content and collect at the far right. After, not before, so
     *  nothing precedes the page's first word. */
    trailing?: ReactNode;
    /** Page CTAs on the title row, right-aligned; `left`/`right` are a separate nav row. */
    actions?: ReactNode;
    testID?: string;
    ref?: React.Ref<HTMLElement>;
    render?: useRender.RenderProp;
}
export declare function PageHeader(props: PageHeaderProps): React.ReactElement<unknown, string | React.JSXElementConstructor<any>>;