import { func } from './then';
declare global {
    interface PromiseConstructor {
        /**
         * Start promise with a function, which Promise.resolve() does not support.
         *
         * @param {T} value
         * - a value - which would be equivient to Promise.resolve(value)
         * - a function which will be called and pass the result in promise
         *
         * @return {Promise<T>}
         * A value within a promise
         *
         * @example
         * Promise.then(3)      // return 3 in a promise
         * Promise.then(()=>3)  // return 3 in a promise
         */
        then<T>(value: T | PromiseLike<T> | func<T>): Promise<T>;
    }
}