import type { ElementalIfCondition } from "@/types/conditions.types";
/**
 * Shared TipTap attribute definition for the `if` conditional field.
 * Spread into any block extension's `addAttributes()` return to enable
 * round-tripping of the `if` field through the editor.
 *
 * Handles both string expressions and structured ElementalConditionExpression.
 */
export declare const conditionalAttribute: {
    if: {
        default: ElementalIfCondition | undefined;
        parseHTML: (element: HTMLElement) => ElementalIfCondition | undefined;
        renderHTML: (attributes: Record<string, unknown>) => {
            "data-if"?: undefined;
        } | {
            "data-if": string;
        };
    };
};