import type { RehypePlugins, RemarkPlugins } from '@astrojs/internal-helpers/markdown';
import type { Options as AcornOpts } from 'acorn';
import type { MdxjsEsm } from 'mdast-util-mdx';
import type { PluggableList } from 'unified';
export declare function jsToTreeNode(jsString: string, acornOpts?: AcornOpts): MdxjsEsm;
/**
 * The MDX compiler cannot resolve string-form plugins the way the `.md` pipeline can,
 * so drop them (with a warning) instead of letting the compiler throw.
 */
export declare function filterStringPlugins(plugins: RemarkPlugins | RehypePlugins | PluggableList): PluggableList;