code: def add_threat_list(self, threat_list):
          
          q = '''INSERT OR IGNORE INTO threat_list
                      (threat_type, platform_type, threat_entry_type, timestamp)
                  VALUES
                      (?, ?, ?, current_timestamp)
          '''
          params = [threat_list.threat_type, threat_list.platform_type, threat_list.threat_entry_type]
          with self.get_cursor() as dbc:
              dbc.execute(q, params)
docs: Add threat list entry if it does not exist.