code: func (s *IssueService) Update(issue *Issue) (*Issue, *Response, error) {
  	return s.UpdateWithOptions(issue, nil)
  }
docs: // Update updates an issue from a JSON representation. The issue is found by key.
  //
  // JIRA API docs: https://docs.atlassian.com/jira/REST/cloud/#api/2/issue-editIssue