什么是browser.ignoreSynchronization？
/**
* If true, Protractor will not attempt to synchronize with the page before
* performing actions. This can be harmful because Protractor will not wait
* until $timeouts and $http calls have been processed, which can cause
* tests to become flaky. This should be used only when necessary, such as
* when a page continuously polls an API using $timeout.
*
* @type {boolean}
*/
& waitForAngularEnabled 两者看起来都一样.是否有任何特定的东西可以由一个人而不是其他人实现？