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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def wrap(self, availWidth, availHeight):
 """ All table properties should be known by now. """


        widths = (availWidth - self.rightColumnWidth,
                  self.rightColumnWidth)

        # makes an internal table which does all the work.
        # we draw the LAST RUN's entries!  If there are
        # none, we make some dummy data to keep the table
        # from complaining
        if len(self._lastEntries) == 0:
            _tempEntries = [(0, 'Placeholder for table of contents', 0)]
        else:
            _tempEntries = self._lastEntries

        lastMargin = 0
        tableData = []
        tableStyle = [
            ('VALIGN', (0, 0), (- 1, - 1), 'TOP'),
            ('LEFTPADDING', (0, 0), (- 1, - 1), 0),
            ('RIGHTPADDING', (0, 0), (- 1, - 1), 0),
            ('TOPPADDING', (0, 0), (- 1, - 1), 0),
            ('BOTTOMPADDING', (0, 0), (- 1, - 1), 0),
        ]
        for i, entry in enumerate(_tempEntries):
            level, text, pageNum = entry[:3]
            leftColStyle = self.levelStyles[level]
            if i:  # Not for first element
                tableStyle.append((
                    'TOPPADDING',
                    (0, i), (- 1, i),
                    max(lastMargin, leftColStyle.spaceBefore)))
                # print leftColStyle.leftIndent
            lastMargin = leftColStyle.spaceAfter
            #right col style is right aligned
            rightColStyle = ParagraphStyle(name='leftColLevel%d' % level,
                                           parent=leftColStyle,
                                           leftIndent=0,
                                           alignment=TA_RIGHT)
            leftPara = Paragraph(text, leftColStyle)
            rightPara = Paragraph(str(pageNum), rightColStyle)
            tableData.append([leftPara, rightPara])

        self._table = Table(
            tableData,
            colWidths=widths,
            style=TableStyle(tableStyle))

        self.width, self.height = self._table.wrapOn(self.canv, availWidth, availHeight)
        return self.width, self.height