export type ManagedBlockUpdate = {
    content: string;
    applied: boolean;
    updatedBlockIds: string[];
    reason?: 'ambiguous-duplicate-id';
};
export declare function managedBlock(id: string, version: string, body: string): string;
export declare function updateManagedBlocks(existingContent: string, nextContent: string): ManagedBlockUpdate;
export declare function hasManagedBlocks(content: string): boolean;