import type { ChartDatapoint } from '../../../core/types/chart-data.js';
type AggregationAccessors = {
    idAccessor: string;
    parentIdAccessor: string;
    labelAccessor: string;
    valueAccessor: string;
    selfValueAccessor?: string;
    /** Accessor used to sort sibling spans. Defaults to `labelAccessor`. */
    sortAccessor?: string;
};
/**
 * Converts raw span data into flame graph rows: each span becomes one row with
 * computed `x0`/`x1` geometry (from inclusive value), depth, and children count.
 *
 * Numeric values are parsed once per span and cached on an intermediate node so
 * the sort comparator and layout pass do not re-run `Number()`. Layout uses an
 * explicit stack rather than recursion to stay safe on very deep call trees.
 */
export declare function aggregateSpansToFlameGraph(spans: ChartDatapoint[], { idAccessor, parentIdAccessor, labelAccessor, valueAccessor, selfValueAccessor, sortAccessor, }: AggregationAccessors): ChartDatapoint[];
export {};
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