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

    from ..QtGui import QIcon
    from ..QtCore import Qt, QObject
    class userDataWrapper:
        "\n                                This    class    is    used    to    wrap    any    userData    object.    If    we    don't    do    this,\n                                then    certain    types    of    objects    can    cause    segmentation    faults    or    issues\n                                depending    on    whether/how    __getitem__    is    defined.\n                                "
        def __init__(self, data):
            self.data = data
    _addItem = QComboBox.addItem
    def addItem(self, *args, **kwargs):
        if ((len(args) == 3) or ((not isinstance(args[0], QIcon)) and (len(args) == 2))):
            (args, kwargs['userData']) = (args[:(-1)], args[(-1)])
        if ('userData' in kwargs):
            kwargs['userData'] = userDataWrapper(kwargs['userData'])
        _addItem(self, *args, **kwargs)
    _insertItem = QComboBox.insertItem
    def insertItem(self, *args, **kwargs):
        if ((len(args) == 4) or ((not isinstance(args[1], QIcon)) and (len(args) == 3))):
            (args, kwargs['userData']) = (args[:(-1)], args[(-1)])
        if ('userData' in kwargs):
            kwargs['userData'] = userDataWrapper(kwargs['userData'])
        _insertItem(self, *args, **kwargs)
    _setItemData = QComboBox.setItemData
    def setItemData(self, index, value, role=Qt.UserRole):
        value = userDataWrapper(value)
        _setItemData(self, index, value, role=role)
    _itemData = QComboBox.itemData
    def itemData(self, index, role=Qt.UserRole):
        userData = _itemData(self, index, role=role)
        if isinstance(userData, userDataWrapper):
            userData = userData.data
        return userData
    def findData(self, value):
        for i in range(self.count()):
            if (self.itemData(i) == value):
                return i
        return (-1)
    QComboBox.addItem = addItem
    QComboBox.insertItem = insertItem
    QComboBox.setItemData = setItemData
   ...

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

def patch_qcombobox(QComboBox):