Is your feature request related to a problem? Please describe.

1. Lack of detailed explanation
   -> We don't know what role each plays when doing subset like loc, iloc ..
   

2. Add-on to snippets
   -> I wish autocomplete code format was added
   
   

3. Recommend a model according to the purpose
   -> I would like to recommend a model according to the purpose (e.g. LogisticRegression for binary classification)
   

Describe the solution you'd like

1. Comments or help would make it easier to code
2. It will be possible to complete the code easily, accurately and quickly with a shortcut key or auto-complete code.
3. If you recommend a model suitable for the purpose, good results will be obtained.