/**
 * Where Astro's dev server says an element of `.astro` markup is written.
 *
 * Astro marks each such element with `data-astro-source-file` (an absolute
 * path) and `data-astro-source-loc` (`<line>:<column>`), and its dev toolbar
 * takes both off the element into a map of its own once its audit app runs,
 * again after every page swap. So they are read when this module loads and
 * caught as they are removed, and kept here per element; the element's own
 * attributes are read first, for a page that has no toolbar.
 *
 * Installs itself on import where there is a document; elsewhere (the
 * transform imports `source-meta.ts` for its attribute name) it does nothing.
 */
/**
 * `<file>:<line>:<column>` of where Astro says `el` is written, or
 * `undefined` for an element Astro did not mark.
 */
export declare const astroCallSite: (el: Element) => string | undefined;
//# sourceMappingURL=astro-sources.d.ts.map