docs: def issue_add_comment(self, issue_key, comment, visibility=None):
          """
          Add comment into Jira issue
          :param issue_key:
          :param comment:
          :param visibility: OPTIONAL
          :return:
          """
          url = 'rest/api/2/issue/{issueIdOrKey}/comment'.format(issueIdOrKey=issue_key)
          data = {'body': comment}
          if visibility:
              data['visibility'] = visibility
          return self.post(url, data=data)