import { ReactType } from 'react';
export declare const utils: {
    isNumber(a: any): a is number;
    isUNumber(a: any): a is number;
    isInt(a: any): a is number;
    isUInt(a: any): a is number;
    isString(a: any): a is string;
    isNEString(a: any): a is string;
    isArray<T = any>(a: any): a is T[];
    isNEArray<T_1 = any>(a: any): a is T_1[];
    isObject(a: any): a is Object;
    isFunction(a: any): a is Function;
    isComponentModule(mod: any, type?: string, staticMethods?: string[] | undefined): ReactType;
    /**
     * Perform the specified action for each element in an array or object,
     * break loop when the stepCallback returns false.
     */
    each(a: any, stepCallback: (value: any, key: any) => void | boolean): void;
    trimPrefix(s: string, prefix: string): string;
    trimSuffix(s: string, suffix: string): string;
    splitBy(s: string, splitter: string): [string, string];
    cleanPath(path: string): string;
};