Gets the text of the specified line.

        :param line_nbr: The line number of the text to get

        :return: Entire line's text
        :rtype: str

def line_text(self, line_nbr):
        """
        Gets the text of the specified line.

        :param line_nbr: The line number of the text to get

        :return: Entire line's text
        :rtype: str
        """
        doc = self._editor.document()
        block = doc.findBlockByNumber(line_nbr)
        return block.text()