code: def test_make_hash_sha256_string(obj, expected):
      assert make_hash_sha256(obj) == expected
  
imports: from hyperparameter_hunter import settings
  from hyperparameter_hunter.i_o.exceptions import EnvironmentInactiveError, EnvironmentInvalidError
  from hyperparameter_hunter.keys.makers import CrossExperimentKeyMaker
  from hyperparameter_hunter.keys.hashing import make_hash_sha256
  from functools import partial
  import pandas
  import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: test_make_hash_sha256_string(obj, expected) without return types