/**
 * Rules to check object typeings
 * */
export declare const ObjectRules: {
    /**
     * Check if an item is an instance of a SectionRegistration
     * @param item to type check
     */
    instanceOfCustomRegistration(item: any): boolean;
    /**
     * Check if an item is an instance of a BlockRegistration
     * @param item to type check
     */
    instanceOfBlockRegistration(item: any): boolean;
    /**
     * Check if an item is an instance of a Block
     * @param item to type check
     */
    instanceOfBlock(item: any): boolean;
};