How to use the tableaudocumentapi.xfile function in tableaudocumentapi

def save(self):
        """
        Call finalization code and save file.

        Args:
            None.

        Returns:
            Nothing.

        """

        # save the file

        xfile._save_file(self._filename, self._datasourceTree)

def save(self):
        """
        Call finalization code and save file.

        Args:
            None.

        Returns:
            Nothing.

        """

        # save the file
        xfile._save_file(self._filename, self._workbookTree)

def save_as(self, new_filename):
        """
        Save our file with the name provided.

        Args:
            new_filename:  New name for the workbook file. String.

        Returns:
            Nothing.

        """

        xfile._save_file(self._filename, self._datasourceTree, new_filename)

def save_as(self, new_filename):
        """
        Save our file with the name provided.

        Args:
            new_filename:  New name for the workbook file. String.

        Returns:
            Nothing.

        """
        xfile._save_file(
            self._filename, self._workbookTree, new_filename)