code: def get_all_collections():
      try:
          with open("/tmp/ci_logs/all_collections.json", "r") as f:
              data = json.load(f)
              all_collections = data["all"]
      except Exception as e:
          log.warn(f"get_all_collections error: {e}")
          return [None]
      return all_collections
  
file_path: milvus/tests/python_client/chaos/testcases/test_concurrent_operation_for_multi_tenancy.py
imports: import time
  import pytest
  import threading
  import json
  from time import sleep
  from pymilvus import connections, db
  from chaos.checker import InsertChecker, UpsertChecker, SearchChecker, QueryChecker, DeleteChecker, Op, ResultAnalyzer
  from utils.util_log import test_log
  from chaos import chaos_commons
  from common.common_type import CaseLabel
  from chaos import constants
label_desc: Use image node_id 1 for calling a global function with example usage: get_all_collections() and returns: all_collections, list