How to use the pymisp.exceptions.PyMISPError function in pymisp

# Make sure the MISP instance is working and the URL is valid
            response = self.get_recommended_api_version()
            if response.get('errors'):
                logger.warning(response.get('errors')[0])
            elif not response.get('version'):
                logger.warning("Unable to check the recommended PyMISP version (MISP <2.4.60), please upgrade.")
            else:
                pymisp_version_tup = tuple(int(x) for x in __version__.split('.'))
                recommended_version_tup = tuple(int(x) for x in response['version'].split('.'))
                if recommended_version_tup < pymisp_version_tup[:3]:
                    logger.info("The version of PyMISP recommended by the MISP instance ({}) is older than the one you're using now ({}). If you have a problem, please upgrade the MISP instance or use an older PyMISP version.".format(response['version'], __version__))
                elif pymisp_version_tup[:3] < recommended_version_tup:
                    logger.warning("The version of PyMISP recommended by the MISP instance ({}) is newer than the one you're using now ({}). Please upgrade PyMISP.".format(response['version'], __version__))

        except Exception as e:
            raise PyMISPError('Unable to connect to MISP ({}). Please make sure the API key and the URL are correct (http/https is required): {}'.format(self.root_url, e))

        try:
            self.describe_types = self.get_live_describe_types()
        except Exception:
            self.describe_types = self.get_local_describe_types()

        self.categories = self.describe_types['categories']
        self.types = self.describe_types['types']
        self.category_type_mapping = self.describe_types['category_type_mappings']
        self.sane_default = self.describe_types['sane_defaults']

def delete_attribute(self, attribute_id):
        """Delete an attribute, you can search by ID or UUID"""
        found = False
        for a in self.attributes:
            if ((hasattr(a, 'id') and a.id == attribute_id)
                    or (hasattr(a, 'uuid') and a.uuid == attribute_id)):
                a.delete()
                found = True
                break
        if not found:
            raise PyMISPError('No attribute with UUID/ID {} found.'.format(attribute_id))

def __init__(self, message):
        super(PyMISPError, self).__init__(message)
        self.message = message

def to_feed(self, valid_distributions=[0, 1, 2, 3, 4, 5], with_meta=False):
        """ Generate a json output for MISP Feed.
        Notes:
            * valid_distributions only makes sense if the distribution key is set (i.e. the event is exported from a MISP instance)
        """
        required = ['info', 'Orgc']
        for r in required:
            if not hasattr(self, r):
                raise PyMISPError('The field {} is required to generate the event feed output.')

        if (hasattr(self, 'distribution')
                and self.distribution is not None
                and int(self.distribution) not in valid_distributions):
            return

        to_return = super(MISPEvent, self)._to_feed()
        if with_meta:
            to_return['_hashes'] = []
            to_return['_manifest'] = self.manifest

        to_return['Orgc'] = self.Orgc._to_feed()
        to_return['Tag'] = list(filter(None, [tag._to_feed() for tag in self.tags]))
        if self.attributes:
            to_return['Attribute'] = []
            for attribute in self.attributes:

class UnknownMISPObjectTemplate(MISPObjectException):
    """Exception raised when the template is unknown"""
    pass


class PyMISPInvalidFormat(PyMISPError):
    pass


class MISPServerError(PyMISPError):
    pass


class PyMISPNotImplementedYet(PyMISPError):
    pass


class PyMISPUnexpectedResponse(PyMISPError):
        pass


class PyMISPEmptyResponse(PyMISPError):
    pass

pass


class SearchError(PyMISPError):
    pass


class MissingDependency(PyMISPError):
    pass


class NoURL(PyMISPError):
    pass


class NoKey(PyMISPError):
    pass


class MISPObjectException(PyMISPError):
    pass


class InvalidMISPObject(MISPObjectException):
    """Exception raised when an object doesn't respect the contrains in the definition"""
    pass


class UnknownMISPObjectTemplate(MISPObjectException):
    """Exception raised when the template is unknown"""
    pass

def edited(self, val):
        """Set the edit flag"""
        if isinstance(val, bool):
            self.__edited = val
        else:
            raise PyMISPError('edited can only be True or False')

def attributes_statistics(self, context: str='type', percentage: bool=False):
        """Get attributes statistics from the MISP instance."""
        # FIXME: https://github.com/MISP/MISP/issues/4874
        if context not in ['type', 'category']:
            raise PyMISPError('context can only be "type" or "category"')
        if percentage:
            path = f'attributes/attributeStatistics/{context}/true'
        else:
            path = f'attributes/attributeStatistics/{context}'
        response = self._prepare_request('GET', path)
        return self._check_response(response, expect_json=True)

def load(self, json_event, validate=False, metadata_only=False):
        """Load a JSON dump from a pseudo file or a JSON string"""
        if hasattr(json_event, 'read'):
            # python2 and python3 compatible to find if we have a file
            json_event = json_event.read()
        if isinstance(json_event, (basestring, bytes)):
            if OLD_PY3 and isinstance(json_event, bytes):
                json_event = json_event.decode()
            json_event = json.loads(json_event)
        if json_event.get('response'):
            event = json_event.get('response')[0]
        else:
            event = json_event
        if not event:
            raise PyMISPError('Invalid event')
        if metadata_only:
            event.pop('Attribute', None)
            event.pop('Object', None)
        self.from_dict(**event)
        if validate:
            jsonschema.validate(json.loads(self.to_json()), self.__json_schema)

def attributes(self, attributes):
        if all(isinstance(x, MISPAttribute) for x in attributes):
            self.Attribute = attributes
        else:
            raise PyMISPError('All the attributes have to be of type MISPAttribute.')