code: def test_pauli_operators_multiplication():
      assert qsimplify_pauli(sx * sx) == 1
      assert qsimplify_pauli(sy * sy) == 1
      assert qsimplify_pauli(sz * sz) == 1
  
      assert qsimplify_pauli(sx * sy) == I * sz
      assert qsimplify_pauli(sy * sz) == I * sx
      assert qsimplify_pauli(sz * sx) == I * sy
  
      assert qsimplify_pauli(sy * sx) == -I * sz
      assert qsimplify_pauli(sz * sy) == -I * sx
      assert qsimplify_pauli(sx * sz) == -I * sy
  
file_path: sympy/sympy/physics/quantum/tests/test_pauli.py
imports: from sympy.core.mul import Mul
  from sympy.core.numbers import I
  from sympy.matrices.dense import Matrix
  from sympy.printing.latex import latex
  from sympy.physics.quantum import Dagger, Commutator, AntiCommutator, qapply, Operator, represent
  from sympy.physics.quantum.pauli import SigmaOpBase, SigmaX, SigmaY, SigmaZ, SigmaMinus, SigmaPlus, qsimplify_pauli
  from sympy.physics.quantum.pauli import SigmaZKet, SigmaZBra
  from sympy.testing.pytest import raises
label_desc: Use image node_id 7 for calling a global function with example usage: test_pauli_operators_multiplication() without return types