code: def test_fuzzy_xor():
      assert fuzzy_xor((None,)) is None
      assert fuzzy_xor((None, True)) is None
      assert fuzzy_xor((None, False)) is None
      assert fuzzy_xor((True, False)) is True
      assert fuzzy_xor((True, True)) is False
      assert fuzzy_xor((True, True, False)) is False
      assert fuzzy_xor((True, True, False, True)) is True
  
file_path: sympy/sympy/core/tests/test_logic.py
imports: from sympy.core.logic import fuzzy_not, Logic, And, Or, Not, fuzzy_and, fuzzy_or, _fuzzy_group, _torf, fuzzy_nand, fuzzy_xor
  from sympy.testing.pytest import raises
  from itertools import product
label_desc: Use image node_id 15 for calling a global function with example usage: test_fuzzy_xor() without return types