def fetch(self, category=CATEGORY_ISSUE, from_date=DEFAULT_DATETIME):
if not from_date:<EOL><INDENT>from_date = DEFAULT_DATETIME<EOL><DEDENT>from_date = datetime_to_utc(from_date)<EOL>kwargs = {'<STR_LIT>': from_date}<EOL>items = super().fetch(category, **kwargs)<EOL>return items<EOL>
Fetch the issues from the site.

        The method retrieves, from a JIRA site, the
        issues updated since the given date.

        :param category: the category of items to fetch
        :param from_date: retrieve issues updated from this date

        :returns: a generator of issues