human
Here's a good function header given the following:
I wrote the below code

    if (ctypeobj is None):
        return types.none
    assert isinstance(ctypeobj, type), ctypeobj
    def _convert_internal(ctypeobj):
        if issubclass(ctypeobj, ctypes._Pointer):
            valuety = _convert_internal(ctypeobj._type_)
            if (valuety is not None):
                return types.CPointer(valuety)
        else:
            return _FROM_CTYPES.get(ctypeobj)
    ty = _convert_internal(ctypeobj)
    if (ty is None):
        raise TypeError(('Unsupported    ctypes    type:    %s' % ctypeobj))
    return ty

What's a good function header?
assistant
#Here's a good function header.

def from_ctypes(ctypeobj):