import { Obj } from '../../types';
export declare function op(state: any): Obj | any[] | string | boolean;
export declare function array(state: any): any[];
export declare function json(state: any): Obj | any[];
export declare function trim(state: any): string;
export declare function lower(state: any): string;
export declare function upper(state: any): string;
export declare function title(state: any): string;
export declare function capitalize(state: any): string;
export declare function slice(state: any): string;
export declare function contains(state: any): boolean;
export declare function starts(state: any): boolean;
export declare function ends(state: any): boolean;
export declare function check(state: any): boolean;
declare const _default: any;
export default _default;