Markers when defining a function?

[ShynnSup]

I was wondering how I can make use of “markers” when defining a function in Python…
Im attaching an image to show what I mean:

Pycharm:

Edit: If its not clear, what I meat is that in Sublime Text these markers (red rectangle in picture) do not appear when defining a function. So there is no way to “close” the code below def.

[kingkeith]

set "fade_fold_buttons": false, in your Preferences, and the fold markers in the gutter should appear for your Python functions that contain at least two lines