code: def read_csv_mock():
      return Mock()
  
imports: from __future__ import absolute_import
  import datetime
  import pandas
  import pytest
  import os
  from mock import Mock, patch
  from sagemaker.feature_store.dataset_builder import DatasetBuilder, FeatureGroupToBeMerged, TableType, JoinComparatorEnum, JoinTypeEnum
  from sagemaker.feature_store.feature_group import FeatureDefinition, FeatureGroup, FeatureTypeEnum
label_desc: Use image node_id 3 for calling a global function with example usage: read_csv_mock() and returns: Mock