import "@tiptap/extension-text-style";
import { Extension } from "@tiptap/core";
export interface FontSizeOptions {
    types: string[];
    /**
     * When false, nothing can *author* a per-run size: `setFontSize` is refused and
     * an inline `font-size` on pasted HTML is discarded rather than adopted. Hiding
     * {@link FontSizeButton} is not enough on its own — paste goes straight to
     * `parseHTML`, so a copied `<span style="font-size:28px">` still reached
     * Elemental as `font_size` with the gate off, which is exactly the write the
     * gate exists to prevent.
     *
     * The extension stays registered either way, so a mark already stored in the
     * content still loads and still round-trips. Elemental → Tiptap sets the
     * attribute directly rather than through `parseHTML`, so dropping the extension
     * (or gating the attribute itself) would silently strip values a host authored
     * while the gate was open.
     */
    enabled: boolean;
}
declare module "@tiptap/core" {
    interface Commands<ReturnType> {
        fontSize: {
            /** Size the selected run of text, e.g. "28px". Invalid values are ignored. */
            setFontSize: (fontSize: string) => ReturnType;
            /** Drop the per-run size so the text falls back to its block/document size. */
            unsetFontSize: () => ReturnType;
        };
    }
}
/**
 * Per-run font size, stored as a `fontSize` attribute on the `textStyle` mark
 * (same shape as {@link Color}). Maps to `font_size` on an Elemental `string` /
 * `link` text-content element, which the renderer emits as an inline
 * `<span style="font-size:…">`.
 *
 * Only px values are accepted — that is the full contract the backend validates
 * the inline mark against, and anything else would be dropped at render time.
 */
export declare const FontSize: Extension<FontSizeOptions, any>;