Feature Request: Include parentheses when tab completing functions

IPython, ptpython, and radian all use prompt-toolkit and all three do not include parentheses when completing functions.

Tab completion in IPython even shows functions with parentheses in the completion menu:

but when I tab complete a function the parentheses are not included:

I would like tab completion of functions to also add parentheses and put my cursor inside the parentheses:

Adding parentheses to completed functions is the default behavior in

• VSCode:
  
  
• PyCharm:
  
  
  And it can be enabled in the Python language server protocol (LSP).

I think this feature would be widely appreciated by users and should be the default behavior for tab completion of functions.
Is there a way we could completion to add parentheses for all three projects (IPython, ptpython, and radian)?

The issue identifies tab completion of functions as the entry point, but names no source files or tests. Search the repository for the completion implementation and its existing tests, then determine how function completions are represented. Done means function completions add parentheses and place the cursor inside them without breaking other completion behavior.