code: def test_mongo_observer_equality(mongo_obs):
      runs = mongo_obs.runs
      fs = mock.MagicMock()
      m = MongoObserver.create_from(runs, fs)
      assert mongo_obs == m
      assert not mongo_obs != m
  
      assert not mongo_obs == "foo"
      assert mongo_obs != "foo"
  
imports: import datetime
  import os
  import sys
  from glob import glob
  import mock
  import pytest
  from sacred.metrics_logger import ScalarMetricLogEntry, linearize_metrics
  import gridfs
  from mongomock.gridfs import enable_gridfs_integration
  from .failing_mongo_mock import FailingMongoClient
  from sacred.dependencies import get_digest
  from sacred.observers.mongo import MongoObserver, force_bson_encodeable
label_desc: Use image node_id 12 for calling a global function with example usage: test_mongo_observer_equality(mongo_obs) without return types