'Insert a page in this PDF file. The page is usually acquired from a
:class:`PdfFileReader<PdfFileReader>` instance.
:param PageObject page: The page to add to the document.  This
argument should be an instance of :class:`PageObject<pdf.PageObject>`.
:param int index: Position at which the page will be inserted.'

def insertPage(self, page, index=0):

    self._addPage(page, (lambda l, p: l.insert(index, p)))
