code: def add_issue(self, node, code, message):
      issue = Issue(node, code, message)
      if issue not in self.issues:
          self.issues.append(issue)
      return True
  
imports: from contextlib import contextmanager
  from typing import Dict, List
label_desc: Use image node_id 10 for calling the Normalizer obj's underlying member method code with example usage: obj.add_issue(node, code, message) and returns: True