import type { OgImageRenderEventContext, VNode, VNodeTransformer } from '../../../types.js';
export declare function walkTree(e: OgImageRenderEventContext, node: VNode, plugins: (VNodeTransformer | VNodeTransformer[])[]): (void | Promise<void>)[];
export declare function defineTransformer(transformer: VNodeTransformer | VNodeTransformer[]): VNodeTransformer | VNodeTransformer[];