export type SunburstValueMode = `leaf-sum` | `total` | `remainder`;
export type SunburstLabelRotation = `auto` | `radial` | `tangential` | `horizontal`;
export type SunburstSort = `descending` | `ascending` | `none`;
export type SunburstLabelText = `label` | `value` | `percent` | `label+value` | `label+percent`;
export type SunburstShape = `sunburst` | `icicle`;
export interface SunburstNode<Metadata = Record<string, unknown>> {
    id?: string | number;
    label?: string;
    value?: number;
    color?: string;
    children?: SunburstNode<Metadata>[];
    metadata?: Metadata;
}
export interface SunburstNodeHandlerProps<Metadata = Record<string, unknown>> extends Omit<PositionedArc<Metadata>, `x0` | `x1` | `y0` | `y1` | `subtree_end` | `parent_idx`> {
    type: `node`;
    parent_id: string | number | null;
}
export interface PositionedArc<Metadata = Record<string, unknown>> {
    node_idx: number;
    subtree_end: number;
    parent_idx: number | null;
    id: string | number;
    label?: string;
    value: number;
    color: string;
    depth: number;
    is_leaf: boolean;
    path: (string | number)[];
    label_path: string[];
    fraction: number;
    parent_fraction: number;
    is_other?: boolean;
    x0: number;
    x1: number;
    y0: number;
    y1: number;
    metadata?: Metadata;
}
export interface SunburstLayoutOptions {
    value_mode?: SunburstValueMode;
    sort?: SunburstSort;
    level_lighten?: number;
    min_fraction?: number;
    other_label?: string;
}
export interface SunburstLayoutResult<Metadata = Record<string, unknown>> {
    arcs: PositionedArc<Metadata>[];
    root: PositionedArc<Metadata> | null;
    max_depth: number;
}
export declare function compute_sunburst_layout<Metadata = Record<string, unknown>>(data: SunburstNode<Metadata> | SunburstNode<Metadata>[], opts?: SunburstLayoutOptions): SunburstLayoutResult<Metadata>;
export declare function sunburst_from_paths<Metadata = Record<string, unknown>>(rows: readonly {
    path: readonly (string | number)[];
    value: number;
    color?: string;
    metadata?: Metadata;
}[]): SunburstNode<Metadata>[];
export declare function sunburst_from_labels_parents<Metadata = Record<string, unknown>>(labels: readonly string[], parents: readonly (string | null | undefined)[], values?: readonly number[], opts?: {
    ids?: readonly (string | number)[];
    colors?: readonly (string | undefined)[];
    metadata?: readonly (Metadata | undefined)[];
}): SunburstNode<Metadata>[];