code: def __init__(self, topic_id):
      self.topic_id = topic_id
      self.mentions = []
  
file_path: nlp-architect/nlp_architect/common/cdc/topics.py
imports: import logging
  import time
  from typing import List
  from nlp_architect.common.cdc.mention_data import MentionData
  from nlp_architect.utils.io import load_json_file
label_desc: Use image node_id 1 to create a new Topic object from inherited base classes: object with example: obj = Topic(topic_id)