code: def test_object_getters(dataset):
      assert dataset.is_directed() == dataset.metadata["is_directed"]
      assert (
          dataset.is_multigraph() == dataset.metadata["is_multigraph"]
      )
      assert dataset.is_symmetric() == dataset.metadata["is_symmetric"]
      assert (
          dataset.number_of_nodes()
          == dataset.metadata["number_of_nodes"]
      )
      assert (
          dataset.number_of_vertices()
          == dataset.metadata["number_of_nodes"]
      )
      assert (
          dataset.number_of_edges()
          == dataset.metadata["number_of_edges"]
      )
  
imports: import os
  import gc
  from pathlib import Path
  from tempfile import TemporaryDirectory
  import pandas
  import pytest
  import cudf
  import dask_cudf
  from cugraph.structure import Graph
  from cugraph.testing import RAPIDS_DATASET_ROOT_DIR_PATH, ALL_DATASETS, WEIGHTED_DATASETS, SMALL_DATASETS, BENCHMARKING_DATASETS
  from cugraph import datasets
  from cugraph.dask.common.mg_utils import is_single_gpu
label_desc: Use image node_id 30 for calling a global function with example usage: test_object_getters(dataset) without return types