loadPage(self, number=0) -> Page

def loadPage(self, number=0):
        """loadPage(self, number=0) -> Page"""
        if self.isClosed or self.isEncrypted:
            raise ValueError("operation illegal for closed / encrypted doc")

        val = _fitz.Document_loadPage(self, number)

        if val:
            val.thisown = True
            val.parent = weakref.proxy(self)
            pageCount = self.pageCount
            n = number
            while n < 0: n += pageCount
            val.number = n
            self._page_refs[id(val)] = val
            val._annot_refs = weakref.WeakValueDictionary()


        return val