071 -
https://github.com/Latand/telegram-bot-lessons/tree/master/lesson-5

071 -YouTube
https://youtu.be/_rfSEBa8Ff0

072 -
https://github.com/Latand/telegram-bot-lessons/tree/master/lesson-7

072 -YouTube
https://youtu.be/i5qHdtq4PSI

074 -
https://gist.github.com/Latand/a437196983cd37750120ecfdac9d0c32