In looking into what it would take to complete typing for the curses module I see that the following modules do not exist and therefore have not typing info:
curses.ascii
curses.panel
curses.textpad

These all look to be fairly straightforward. But ...

Something that is confusing me is that when you create a panel:
p = curses.panel.new_panel(win)
and check it's type it returns
<class '_curses_panel.curses panel'>

it seems that there is a space in the class name because when I run help(p) I get:

class curses panel(builtins.object)
 |  Methods defined here:
 |
 |  above(...)
 |
...

In my digging brought me to the source code at https://github.com/python/cpython/blob/master/Modules/_curses_panel.c
starting at line 381 we have a referance to 'curses panel'

static PyType_Spec PyCursesPanel_Type_spec = {
    "_curses_panel.curses panel",
    sizeof(PyCursesPanelObject),
    0,
    Py_TPFLAGS_DEFAULT,
    PyCursesPanel_Type_slots
};

My C is only Kindergarten read only and so I have gone well beyond my depth. So how would I annotate the return type of curses.panel.new_panel?