Webdriver? I intalled package. And saw this. What for?

[AlexanderKozhevin]

> ng2-handy-syntax-highlighter@1.0.9 postinstall /Users/alexanderkozhevin/Desktop/isometry/node_modules/ng2-handy-syntax-highlighter
> npm run webdriver:update

> ng2-handy-syntax-highlighter@1.0.9 webdriver:update /Users/alexanderkozhevin/Desktop/isometry/node_modules/ng2-handy-syntax-highlighter
> webdriver-manager update

[14:39:18] I/file_manager - creating folder /Users/alexanderkozhevin/Desktop/isometry/node_modules/protractor/node_modules/webdriver-manager/selenium
[14:39:20] I/downloader - curl -o /Users/alexanderkozhevin/Desktop/isometry/node_modules/protractor/node_modules/webdriver-manager/selenium/chromedriver_2.29.zip https://chromedriver.storage.googleapis.com/2.29/chromedriver_mac64.zip
[14:39:20] I/downloader - curl -o /Users/alexanderkozhevin/Desktop/isometry/node_modules/protractor/node_modules/webdriver-manager/selenium/selenium-server-standalone-3.4.0.jar https://selenium-release.storage.googleapis.com/3.4/selenium-server-standalone-3.4.0.jar
[14:39:22] I/update - chromedriver: unzipping chromedriver_2.29.zip
[14:39:23] I/update - chromedriver: setting permissions to 0755 for /Users/alexanderkozhevin/Desktop/isometry/node_modules/protractor/node_modules/webdriver-manager/selenium/chromedriver_2.29
[14:39:24] I/downloader - curl -o /Users/alexanderkozhevin/Desktop/isometry/node_modules/protractor/node_modules/webdriver-manager/selenium/geckodriver-v0.16.1.tar.gz https://github.com/mozilla/geckodriver/releases/download/v0.16.1/geckodriver-v0.16.1-macos.tar.gz
[14:39:36] I/update - geckodriver: unzipping geckodriver-v0.16.1.tar.gz
[14:39:36] I/update - geckodriver: setting permissions to 0755 for /Users/alexanderkozhevin/Desktop/isometry/node_modules/protractor/node_modules/webdriver-manager/selenium/geckodriver-v0.16.1

[ghost]

I have to completely agree with this, why is this needed?