code: def sagemaker_session():
      boto_mock = Mock(name="boto_session", region_name=REGION)
      sms = MagicMock(
          name="sagemaker_session",
          boto_session=boto_mock,
          boto_region_name=REGION,
          config=None,
          local_mode=False,
          s3_client=None,
          s3_resource=None,
          default_bucket_prefix=None,
      )
      sms.default_bucket = Mock(
          name="default_bucket", return_value=BUCKET_NAME
      )
      # For tests which doesn't verify config file injection, operate with empty config
      sms.sagemaker_config = {}
      return sms
  
imports: from __future__ import absolute_import
  import random
  from unittest.mock import MagicMock
  import pytest
  from mock import Mock, patch
  import sagemaker
  from sagemaker.async_inference import AsyncInferenceConfig
  from sagemaker.model import FrameworkModel, Model
  from sagemaker.huggingface.model import HuggingFaceModel
  from sagemaker.jumpstart.constants import JUMPSTART_GATED_AND_PUBLIC_BUCKET_NAME_SET, JUMPSTART_RESOURCE_BASE_NAME
  from sagemaker.jumpstart.enums import JumpStartTag
  from sagemaker.mxnet.model import MXNetModel
  from sagemaker.pytorch.model import PyTorchModel
  from sagemaker.session_settings import SessionSettings
  from sagemaker.sklearn.model import SKLearnModel
  from sagemaker.tensorflow.model import TensorFlowModel
  from sagemaker.xgboost.model import XGBoostModel
  from sagemaker.enums import EndpointType
  from sagemaker.compute_resource_requirements.resource_requirements import ResourceRequirements
  from sagemaker.workflow.properties import Properties
  from tests.unit import _test_default_bucket_and_prefix_combinations, DEFAULT_S3_BUCKET_NAME, DEFAULT_S3_OBJECT_KEY_PREFIX_NAME, SAGEMAKER_CONFIG_EDGE_PACKAGING_JOB
label_desc: Use image node_id 1 for calling a global function with example usage: sagemaker_session() and returns: sms