code: def _estimate_memory_usage(self, **kwargs):
      return 1e9
  
file_path: autogluon/core/tests/unittests/test_parallel_local_folding.py
imports: import math
  import time
  from unittest.mock import patch
  import numpy
  import pandas
  from autogluon.common import space
  from autogluon.common.utils.resource_utils import ResourceManager
  from autogluon.core.models import AbstractModel
  from autogluon.core.models.ensemble.bagged_ensemble_model import BaggedEnsembleModel
  from autogluon.core.models.ensemble.fold_fitting_strategy import ParallelLocalFoldFittingStrategy
  from autogluon.core.searcher import LocalRandomSearcher
label_desc: Use image node_id 1 for calling the DummyBigModel obj's underlying member method code with example usage: obj._estimate_memory_usage() and returns: int