human
Solve the following python programming problem given the following code:
def DrawText(self, dc, txt, bounds, font = None, alignment = wx.ALIGN_LEFT, valignment = wx.ALIGN_CENTRE, image = None, color = None, canWrap = True, imageIndex = (- 1), listCtrl = None) : 
    "
        Draw the given text in the given DC according to the given characteristics.

        This is the workhorse text drawing method for our reporting engine.

        The *font*, *alignment*, and *color* attributes are applied to the drawn text.

        If *image* is not None, it will be drawn to the left of the text. All text is indented
        by the width of the image, even if the text is multi-line.

        If *imageIndex* is 0 or more and *listCtrl* is not None, the corresponding image from
        the ListCtrl's small image list will be drawn to the left of the text.

        If *canWrap* is True, the text will be wrapped to fit within the given bounds. If it is False,
        then the first line of *txt* will be truncated at the edge of the given *bounds*.
        " 
    GAP_BETWEEN_IMAGE_AND_TEXT = 4 
    def _CalcBitmapPosition(r, height) : 
        if (valignment == wx.ALIGN_TOP) : 
            return RectUtils.Top (r) 
else : 
            if (valignment == wx.ALIGN_CENTER) : 
                return (RectUtils.CenterY (r) - (height / 2)) 
else : 
                if (valignment == wx.ALIGN_BOTTOM) : 
                    return (RectUtils.Bottom (r) - height) 
else : 
                    return RectUtils.Top (r) 
if image : 
        y = _CalcBitmapPosition (bounds, image.Height) 
        dc.DrawBitmap (image, RectUtils.Left (bounds), y) 
        RectUtils.MoveLeftBy (bounds, (image.GetWidth () + GAP_BETWEEN_IMAGE_AND_TEXT)) 
else : 
        if (listCtrl and (imageIndex >= 0)) : 
            imageList = listCtrl.GetImageList (wx.IMAGE_LIST_SMALL) 
            y = _CalcBitmapPosition (bounds, imageList.GetSize (0) [1]) 
            imageList.Draw (imageIndex, dc, RectUtils.Left (bounds), y, wx.IMAGELIST_DRAW_TRANSPARENT) 
            RectUtils.MoveLeftBy (bounds, (imageList.GetSize (0) [0] + <MASK>))...
    
    Given the code above, what is a proper replacement for <MASK>?
assistant
#Here is a proper replacement for <MASK>.
GAP_BETWEEN_IMAGE_AND_TEXT