type GuardFn = (format: string) => boolean;
export declare const isPrimitiveType: GuardFn;
export declare const isUndefined: GuardFn;
export declare const isNull: GuardFn;
export declare const isUnion: GuardFn;
export declare const isString: GuardFn;
export declare const isArray: GuardFn;
export declare const isObjectOf: GuardFn;
export declare const isObject: GuardFn;
export declare const isFunction: GuardFn;
export declare const isJSXorNode: GuardFn;
export declare const isSomethingWithParenthesis: GuardFn;
export {};