code: def from_existing(path):
      commits = CommitList.read_from_disk(path)
      return CommitList(path, commits)
  
imports: import argparse
  import csv
  import dataclasses
  import os
  import pprint
  import re
  from collections import defaultdict
  from pathlib import Path
  from typing import List
  import common
  from common import features_to_dict, frontend_categories, get_commit_data_cache, get_features, run, topics
label_desc: Use image node_id 2 for calling the CommitList obj's underlying member method code with example usage: obj.from_existing(path) and returns: CommitList