code: def test_allcombinations():
      assert set(allcombinations((1, 2), (1, 2), "commutative")) == {
          (((1,), (2,)), ((1,), (2,))),
          (((1,), (2,)), ((2,), (1,))),
      }
  
file_path: sympy/sympy/unify/tests/test_unify.py
imports: from sympy.unify.core import Compound, Variable, CondVariable, allcombinations
  from sympy.unify import core
label_desc: Use image node_id 10 for calling a global function with example usage: test_allcombinations() without return types