text: (function () {
  	'use strict';
  
  	(() => () => console.log( 'effect' ))()();
  
  	(() => () => () => console.log( 'effect' ))()()();
  
  	const retained1 = () => () => console.log( 'effect' );
  	retained1()();
  
  	(() => {
  		return () => console.log( 'effect' );
  	})()();
  
  	(() => ({ foo: () => console.log( 'effect' ) }))().foo();
  
  	(() => ({ foo: () => ({ bar: () => console.log( 'effect' ) }) }))().foo().bar();
  
  }());
  