import type { TraceSpan } from "../../../lib/trace/types.js";
type Bounds = {
    startNs: bigint;
    endNs: bigint;
};
export interface SpanWaterfallProps {
    root: TraceSpan;
    /** Trace window; defaults to the honest min-start/max-end envelope of the whole tree. */
    bounds?: Bounds;
    selectedId: string | null;
    onSelect: (id: string) => void;
    collapsed: Set<string>;
    /** ns → label for the hover-needle. Default ISO datetime. */
    formatTimestamp?: (ns: bigint) => string;
    /** USD cost formatter for the ∑ rollup badge. Default `$0.0000`. */
    formatCostUsd?: (usd: number) => string;
    className?: string;
    "aria-label"?: string;
}
/**
 * SpanWaterfall — a nice-interval time axis over row-packed span bars, a
 * hover-needle reading the absolute wall-clock time under the pointer, and a
 * `∑` rollup-cost badge on parent rows. Bars are percentage-positioned via
 * `computeBarLayout` (clock-skew / in-flight → dashed unbounded). Controlled:
 * selection lives in the consumer. Escaped text only — no HTML injection.
 */
export declare function SpanWaterfall({ root, bounds, selectedId, onSelect, collapsed, formatTimestamp, formatCostUsd, className, "aria-label": ariaLabel, }: SpanWaterfallProps): import("react").JSX.Element;
export {};