import type { FamilyTree } from './types.js';
export type RenderFormat = 'dot' | 'svg' | 'png';
export interface RenderOptions {
    format?: RenderFormat;
}
export declare function render(data: FamilyTree, options: {
    format: 'png';
}): Promise<Buffer>;
export declare function render(data: FamilyTree, options?: {
    format?: 'svg' | 'dot';
}): Promise<string>;
export declare function render(data: FamilyTree, options: RenderOptions): Promise<string | Buffer>;
export default render;