The lecture is a bit old, so there are some issues like the fact that functions that used to be plugins have become basic functions, but personally, I realized that the detailed functions of the IDE are so diverse and that using them can save a lot of time. There is a lecture on IntelliJ by Hyangro, but it covers functions in quite a lot of detail, and even though it is a function called IntelliJ, which is the main function for Python and Java, which do not have types, the actual functions supported are different, so the advantage of this lecture is that it explains PyCharm. If you are new to IntelliJ and want to try PyCharm, this is a lecture worth listening to.