import { Editor } from '@tiptap/react';
/**
 * Inspects the current editor selection and returns the active typography style key.
 * Returns 'body' when the cursor is inside a plain paragraph (default).
 * Returns 'small' when the cursor is inside a paragraph with a fontSize:14 mark (Caption).
 *
 * @param editor - The live TipTap editor instance.
 * @returns The active style key (e.g. 'h1', 'body', 'small').
 */
export default function getActiveStyle(editor: Editor): string;