Help With Deciphering Python AutoComplete


I could use some help deciphering a cryptic autocomplete message from Revit Python Shell. I have tried Stack Exchange and the Revit API forum at Autodesk without any luck.

Here is a clip of the code that I am trying:


The thing is, that when I start typing “a.ite…”, the popup in the gray box appears. But can anyone explain to me how to use “indexer#(info…”? Everything I tried results in an error.