import { TestingCore } from '../testing-core.abstract';
import { ExpectType } from '../../type';
export declare class TestingItToBeBoolean<Descriptions extends string = string, Expectations extends string = string> extends TestingCore<Descriptions, Expectations> {
    boolean<T>(actual: ExpectType<T>, expected?: jasmine.Expected<boolean>, expectation?: string, expectationFailOutput?: any, execute?: boolean): this;
    type<T>(actual: ExpectType<T>, expected?: jasmine.Expected<boolean>, expectation?: string, expectationFailOutput?: any, execute?: boolean): this;
}