$ go install github.com/vzvu3k6k/twitter_avatar_downloader@latest
$ twitter_avatar_downloader cnn nytimes nasa
$ ls
cnn.jpg nasa.jpg nytimes.png
$ twitter_avatar_downloader thisuserdoesnotexist
2021/11/20 08:00:00 get thisuserdoesnotexist
2021/11/20 08:00:01 user does not exist