import { SpansRow } from "./types";
export type FlatSpan<T> = {
    row: T;
    id: string;
    parentId: string | null;
    depth: number;
    hasChildren: boolean;
    hasLoadedChildren: boolean;
    posInSet: number;
    setSize: number;
};
export type IdAccessor<T> = (row: T) => string;
export type ParentAccessor<T> = (row: T) => string | null;
export declare const buildAndFlattenSpans: <T extends SpansRow>(rows: T[], expandedIds: Set<string>, getId: IdAccessor<T>, getParentId: ParentAccessor<T>) => FlatSpan<T>[];