code: def role(sagemaker_session):
      return get_execution_role(sagemaker_session)
  
file_path: sagemaker-python-sdk/tests/integ/sagemaker/workflow/test_pipeline_var_behaviors.py
imports: from __future__ import absolute_import
  import pytest
  from tests.integ.sagemaker.workflow.helpers import wait_pipeline_execution
  from sagemaker import get_execution_role, utils
  from sagemaker.workflow.condition_step import ConditionStep
  from sagemaker.workflow.conditions import ConditionGreaterThan
  from sagemaker.workflow.fail_step import FailStep
  from sagemaker.workflow.functions import Join
  from sagemaker.workflow.parameters import ParameterString, ParameterInteger
  from sagemaker.workflow.pipeline import Pipeline
label_desc: Use image node_id 1 for calling a global function with example usage: role(sagemaker_session) and returns: get_execution_role