code: def test_list_tags(sagemaker_session_mock):
      feature_group = FeatureGroup(
          name="MyFeatureGroup",
          sagemaker_session=sagemaker_session_mock,
      )
      sagemaker_session_mock.describe_feature_group.return_value = {
          "FeatureGroupArn": "test-arn"
      }
      feature_group.list_tags()
      sagemaker_session_mock.list_tags.assert_called_with(
          resource_arn="test-arn"
      )
  
imports: from __future__ import absolute_import
  import pandas
  import pytest
  from mock import Mock, patch, MagicMock
  from botocore.exceptions import ProfileNotFound
  from sagemaker.feature_store.feature_definition import FractionalFeatureDefinition, IntegralFeatureDefinition, StringFeatureDefinition, FeatureTypeEnum, VectorCollectionType, SetCollectionType, ListCollectionType
  from sagemaker.feature_store.feature_group import FeatureGroup, IngestionManagerPandas, AthenaQuery, IngestionError
  from sagemaker.feature_store.inputs import FeatureParameter, DeletionModeEnum, TtlDuration, OnlineStoreConfigUpdate, OnlineStoreStorageTypeEnum
  from tests.unit import SAGEMAKER_CONFIG_FEATURE_GROUP
label_desc: Use image node_id 28 for calling a global function with example usage: test_list_tags(sagemaker_session_mock) without return types