/**
 * LineHeightExtension — block-level attribute that applies line-height.
 *
 * Commands: `setLineHeight(value)`, `unsetLineHeight()`.
 */
import { Extension } from '@tiptap/core';
export interface LineHeightOptions {
    types: string[];
}
declare module '@tiptap/core' {
    interface Commands<ReturnType> {
        lineHeight: {
            setLineHeight: (value: string) => ReturnType;
            unsetLineHeight: () => ReturnType;
        };
    }
}
export declare const LineHeightExtension: Extension<LineHeightOptions, any>;
//# sourceMappingURL=line-height.d.ts.map