import { JSONGuard } from '../definition'; export declare function chain(...tests: [JSONGuard, JSONGuard]): JSONGuard; export declare function chain(...tests: [JSONGuard, JSONGuard, JSONGuard]): JSONGuard; export declare function chain(...tests: [JSONGuard, JSONGuard, JSONGuard]): JSONGuard; export declare function chain(...tests: [ JSONGuard, JSONGuard, JSONGuard, JSONGuard ]): JSONGuard;