code: def __init__(self, time, event_type, data=None):
      self.time = time
      self.event_type = event_type
      self.data = data
  
imports: import collections
  import copy
  import logging
  import yaml
  import tempfile
  from typing import Dict, Callable, List
  import shutil
  from queue import PriorityQueue
  import unittest
  import pytest
  import ray
  from ray.tests.test_autoscaler import MockProvider, MockProcessRunner, MockGcsClient, mock_raylet_id, MockAutoscaler
  from ray.tests.test_resource_demand_scheduler import MULTI_WORKER_CLUSTER
  from ray.autoscaler._private.providers import _NODE_PROVIDERS, _clear_provider_cache
  from ray.autoscaler._private.load_metrics import LoadMetrics
  from ray.autoscaler._private.node_launcher import NodeLauncher
  from ray.autoscaler.tags import TAG_RAY_USER_NODE_TYPE, TAG_RAY_NODE_KIND, NODE_KIND_HEAD
  from ray.autoscaler._private.constants import AUTOSCALER_UPDATE_INTERVAL_S
  from ray.autoscaler._private.cli_logger import cli_logger
  from ray.core.generated.common_pb2 import Bundle, PlacementStrategy
  from ray._private.gcs_utils import PlacementGroupTableData
label_desc: Use image node_id 1 to create a new Event object  with example: obj = Event(time, event_type, data)