code: def comment(self, body):
          
          self.github_request.comment(issue=self, body=body)
  
          if self.state == 'closed':
              self.open_issue()
          return self
docs: Adds a comment to the issue.
  
          :params body: body, content of the comment
          :returns: issue object
          :rtype: :class:`exreporter.stores.github.GithubIssue`