type WPFormat = {
    name: string;
    tagName: string;
    interactive: boolean;
    title: string;
    edit: any;
    className?: string;
    attributes?: Record<string, string>;
};
/**
 * Registers a format and records it for potential cleanup.
 * If the format already exists, it will be replaced and the previous definition will be preserved.
 */
export declare function registerFormatForEmail(name: string, settings: WPFormat): void;
/**
 * Unregisters a format, preserving its current definition so it can be restored later.
 */
export declare function unregisterFormatForEmail(name: string): void;
/**
 * Restores formats to the state before email-editor changes:
 * - Re-register all formats that we unregistered and preserved
 * - Remove formats that were registered by the email editor
 * The order is: remove newly registered first, then restore preserved definitions.
 */
export declare function resetFormats(): void;
export {};