code: def test_maccs_keys_fingerprint(chemdf):
      """Test conversion of SMILES strings to MACCS keys fingerprints."""
      maccs_keys = chemdf.smiles2mol(
          "smiles", "mol"
      ).maccs_keys_fingerprint("mol")
      assert maccs_keys.shape == (10, 167)
      assert set(maccs_keys.to_numpy().flatten().tolist()) == set(
          [0, 1]
      )
  
imports: import importlib
  import pytest
  from helpers import running_on_ci
  import janitor.chemistry
label_desc: Use image node_id 1 for calling a global function with example usage: test_maccs_keys_fingerprint(chemdf) without return types