declare module '@tiptap/core' {
    interface Commands<ReturnType> {
        fontSize: {
            setFontSize: (size: string) => ReturnType;
            unsetFontSize: () => ReturnType;
        };
        letterSpacing: {
            setLetterSpacing: (size: string) => ReturnType;
            unsetLetterSpacing: () => ReturnType;
        };
        lineHeight: {
            setLineHeight: (size: string) => ReturnType;
            unsetLineHeight: () => ReturnType;
        };
        textTransform: {
            setTextTransform: (size: string) => ReturnType;
            unsetTextTransform: () => ReturnType;
        };
    }
}
export declare const TextStyleExtended: import('@tiptap/core').Mark<import('@tiptap/extension-text-style').TextStyleOptions, any>;
export default TextStyleExtended;