/**
 * The class can be used to build ChaiJS BDD style assertions that can be
 * asserted against a running application from a WebDriverJS test. It supports
 * a subset of assertions specified in the following documentation:
 * {@link https://www.chaijs.com/api/bdd/}.
 *
 * The following assertions are currently not supported:
 *   instanceof, throw, respondTo, satisfy, itself, change, increase, decrease, by
 *
 */
declare class Expectation<T = any> {
    assertion: {
        expression: string;
        chain: any[];
    };
    /**
     * Create an Expectation to be evaluated on the client against the underlying
     * data model.
     * @param expression An expression statement to be evaluated for this Expectation
     * against the underlying viewmodel/page var
     */
    constructor(expression: string);
    chainGetter(name: string): Expectation<T>;
    chainFunction(name: string, ...args: any[]): Expectation<T>;
    get to(): Expectation<T>;
    get be(): Expectation<T>;
    get been(): Expectation<T>;
    get is(): Expectation<T>;
    get that(): Expectation<T>;
    get which(): Expectation<T>;
    get and(): Expectation<T>;
    get has(): Expectation<T>;
    get have(): Expectation<T>;
    get with(): Expectation<T>;
    get at(): Expectation<T>;
    get of(): Expectation<T>;
    get same(): Expectation<T>;
    get but(): Expectation<T>;
    get does(): Expectation<T>;
    get still(): Expectation<T>;
    get not(): Expectation<T>;
    get deep(): Expectation<T>;
    get nested(): Expectation<T>;
    get own(): Expectation<T>;
    get ordered(): Expectation<T>;
    get any(): Expectation<T>;
    get all(): Expectation<T>;
    get ok(): Expectation<T>;
    get true(): Expectation<T>;
    get false(): Expectation<T>;
    get null(): Expectation<T>;
    get undefined(): Expectation<T>;
    get NaN(): Expectation<T>;
    get exist(): Expectation<T>;
    get empty(): Expectation<T>;
    get arguments(): Expectation<T>;
    get extensible(): Expectation<T>;
    get sealed(): Expectation<T>;
    get frozen(): Expectation<T>;
    get finite(): Expectation<T>;
    a(type: string, msg?: string): Expectation<T>;
    include(val: any, msg?: string): Expectation<T>;
    equal(val: any, msg?: string): Expectation<T>;
    eql(obj: object, msg?: string): Expectation<T>;
    above(n: number, msg?: string): Expectation<T>;
    least(n: number, msg?: string): Expectation<T>;
    below(n: number, msg?: string): Expectation<T>;
    most(n: number, msg?: string): Expectation<T>;
    within(start: number, finish: number, msg?: string): Expectation<T>;
    property(name: string, val?: any, msg?: string): Expectation<T>;
    ownPropertyDescriptor(name: string, descriptor?: object, msg?: string): Expectation<T>;
    lengthOf(n: number, msg?: string): Expectation<T>;
    match(re: RegExp, msg?: string): Expectation<T>;
    string(str: string, msg?: string): Expectation<T>;
    keys(...keys: Array<string | object | Array<string>>): Expectation<T>;
    closeTo(expected: number, delta: number, msg?: string): Expectation<T>;
    members(set: any[], msg?: string): Expectation<T>;
    oneOf(list: any[], msg?: string): Expectation<T>;
    fail(...args: any[]): Expectation<T>;
}
export { Expectation };