import { type ChartSpace } from './chart';
/** Parse a `xl/charts/chartN.xml` payload. */
export declare function parseChartXml(bytes: Uint8Array | string): ChartSpace;
/**
 * Inspect a parsed chart-space root and return the rId referenced by
 * `<c:userShapes r:id="...">` if any. The loader calls this after parsing the
 * chart so it can resolve the chartDrawing part via the chart's rels.
 */
export declare function findUserShapesRId(bytes: Uint8Array | string): string | undefined;
/** Optional rels rIds the writer resolves before bytes are emitted. */
export interface ChartSerializeOptions {
    /** Drawing-rels id for the `<c:userShapes r:id="...">` reference. */
    userShapesRId?: string;
}
/** Serialise a ChartSpace to its `xl/charts/chartN.xml` bytes. */
export declare function chartToBytes(space: ChartSpace, opts?: ChartSerializeOptions): Uint8Array;