code: def add_issues(self, issues):
          
  
          if not isinstance(issues, (list, tuple)):
              issues = [issues]
          with self._lock:
              self._all_issues.extend(issues)
              self._cleaned_issues = None
docs: Adds an issue to the collection.
  
          :param issues: the issue(s) to add
          :type issues: tidypy.Issue or list(tidypy.Issue)