import type { InlineSpan } from '../parse/index.js';
/**
 * The language a run is measured in when it names its own (#764): the
 * `lang` of the innermost isolate around it that has one
 * (`:ltr[…]{lang=en}`), in the form a context takes it (`shapingTagOf`).
 * Undefined for a run that names none, which is measured in the language
 * in force, and in a document shaped in the host's language
 * (`bodyText.shapingLanguage: 'host'`), where no context is given one.
 */
export declare function spanShapingLanguage(span: InlineSpan): string | undefined;
//# sourceMappingURL=spanLanguage.d.ts.map