How to use the oletools.ppt_parser.PptUnexpectedData function in oletools

def check_validity(self, offset=None):
        errs = self.check_rec_head()
        errs.extend(self.check_value('minorVersion', self.minor_version,
                                     self.MINOR_VERSION))
        errs.extend(self.check_value('majorVersion', self.major_version,
                                     self.MAJOR_VERSION))
        if offset is not None:
            if self.offset_last_edit >= offset:
                errs.append(PptUnexpectedData(
                    'PowerPoint Document', 'UserEditAtom.offsetLastEdit',
                    self.offset_last_edit, '< {0}'.format(offset)))
            if self.offset_persist_directory >= offset or \
                    self.offset_persist_directory <= self.offset_last_edit:
                errs.append(PptUnexpectedData(
                    'PowerPoint Document',
                    'UserEditAtom.offsetPersistDirectory',
                    self.offset_last_edit,
                    'in ({0}, {1})'.format(self.offset_last_edit, offset)))
        errs.extend(self.check_value('docPersistIdRef',
                                     self.doc_persist_id_ref, 1))
        return errs

def check_validity(self, offset=None):
        errs = self.check_rec_head()
        errs.extend(self.check_value('minorVersion', self.minor_version,
                                     self.MINOR_VERSION))
        errs.extend(self.check_value('majorVersion', self.major_version,
                                     self.MAJOR_VERSION))
        if offset is not None:
            if self.offset_last_edit >= offset:
                errs.append(PptUnexpectedData(
                    'PowerPoint Document', 'UserEditAtom.offsetLastEdit',
                    self.offset_last_edit, '< {0}'.format(offset)))
            if self.offset_persist_directory >= offset or \
                    self.offset_persist_directory <= self.offset_last_edit:
                errs.append(PptUnexpectedData(
                    'PowerPoint Document',
                    'UserEditAtom.offsetPersistDirectory',
                    self.offset_last_edit,
                    'in ({0}, {1})'.format(self.offset_last_edit, offset)))
        errs.extend(self.check_value('docPersistIdRef',
                                     self.doc_persist_id_ref, 1))
        return errs

def check_value(name, value, expected):
    """ simplify verification of values in extract_from """
    if isinstance(expected, (list, tuple)):
        if value not in expected:
            exp_str = '[' + ' OR '.join('{0:04X}'.format(val)
                                        for val in expected) + ']'
            raise PptUnexpectedData(
                'Current User', name,
                '{0:04X}'.format(value), exp_str)
    elif expected != value:
        raise PptUnexpectedData(
            'Current User', name,
            '{0:04X}'.format(value), '{0:04X}'.format(expected))

def check_value(self, name, value, expected):
        """ simplify verification of values: check value equals/is in expected

        :returns: list of PptUnexpectedData exceptions
        """
        if isinstance(expected, (list, tuple)):
            if value not in expected:
                clz_name = self.__class__.__name__
                exp_str = '[' + ' OR '.join('{0:04X}'.format(val)
                                            for val in expected) + ']'
                return [PptUnexpectedData(
                    self.stream_name, clz_name + '.' + name,
                    '{0:04X}'.format(value), exp_str), ]
        elif expected != value:
            clz_name = self.__class__.__name__
            return [PptUnexpectedData(
                self.stream_name, clz_name + '.' + name,
                '{0:04X}'.format(value), '{0:04X}'.format(expected)), ]
        return []

def check_value(self, name, value, expected):
        """ simplify verification of values: check value equals/is in expected

        :returns: list of PptUnexpectedData exceptions
        """
        if isinstance(expected, (list, tuple)):
            if value not in expected:
                clz_name = self.__class__.__name__
                exp_str = '[' + ' OR '.join('{0:04X}'.format(val)
                                            for val in expected) + ']'
                return [PptUnexpectedData(
                    self.stream_name, clz_name + '.' + name,
                    '{0:04X}'.format(value), exp_str), ]
        elif expected != value:
            clz_name = self.__class__.__name__
            return [PptUnexpectedData(
                self.stream_name, clz_name + '.' + name,
                '{0:04X}'.format(value), '{0:04X}'.format(expected)), ]
        return []

def _fail(self, *args):
        """ depending on self.fast_fail raise PptUnexpectedData or just log err

        args as for PptUnexpectedData
        """
        if self.fast_fail:
            raise PptUnexpectedData(*args)
        else:
            self._log_exception(PptUnexpectedData(*args).msg)

MAIN_STREAM_NAME, 'PersistDirectoryEntry.persist_id',
                self.persist_id, '< 0xFFFFE (dec: {0})'.format(0xFFFFE)))
        if self.c_persist == 0:
            errs.append(PptUnexpectedData(
                MAIN_STREAM_NAME, 'PersistDirectoryEntry.c_persist',
                self.c_persist, '> 0'))
        if user_edit_last_offset is not None \
                and min(self.rg_persist_offset) < user_edit_last_offset:
            errs.append(PptUnexpectedData(
                MAIN_STREAM_NAME, 'PersistDirectoryEntry.rg_persist_offset',
                min(self.rg_persist_offset),
                '> UserEdit.offsetLastEdit ({0})'
                .format(user_edit_last_offset)))
        if persist_obj_dir_offset is not None \
                and max(self.rg_persist_offset) > persist_obj_dir_offset:
            errs.append(PptUnexpectedData(
                MAIN_STREAM_NAME, 'PersistDirectoryEntry.rg_persist_offset',
                max(self.rg_persist_offset),
                '> PersistObjectDirectory offset ({0})'
                .format(persist_obj_dir_offset)))
        return errs

def check_value(name, value, expected):
    """ simplify verification of values in extract_from """
    if isinstance(expected, (list, tuple)):
        if value not in expected:
            exp_str = '[' + ' OR '.join('{0:04X}'.format(val)
                                        for val in expected) + ']'
            raise PptUnexpectedData(
                'Current User', name,
                '{0:04X}'.format(value), exp_str)
    elif expected != value:
        raise PptUnexpectedData(
            'Current User', name,
            '{0:04X}'.format(value), '{0:04X}'.format(expected))