code: def sar_settings():
      return {
          # absolute tolerance parameter for matrix equivalence in SAR tests
          "ATOL": 1e-8,
          # directory of the current file - used to link unit test data
          "FILE_DIR": "https://recodatasets.z20.web.core.windows.net/sarunittest/",
          # user ID used in the test files (they are designed for this user ID, this is part of the test)
          "TEST_USER_ID": "0003000098E85347",
      }
  
imports: import calendar
  import datetime
  import os
  from pathlib import Path
  from tempfile import TemporaryDirectory
  import numpy
  import pandas
  import pytest
  from sklearn.model_selection import train_test_split
  from recommenders.utils.constants import DEFAULT_USER_COL, DEFAULT_ITEM_COL, DEFAULT_RATING_COL, DEFAULT_TIMESTAMP_COL
  from recommenders.datasets.python_splitters import numpy_stratified_split
  from recommenders.datasets.python_splitters import python_chrono_split
  from recommenders.utils.spark_utils import start_or_get_spark
label_desc: Use image node_id 6 for calling a global function with example usage: sar_settings() and returns: dict