code: def test_quaternion_transform(op, quaternion):
      """Test the functionality to create quaternion representation"""
      su2_matrix, _ = _SU2_transform(op.matrix())
      op_quaternion = _quaternion_transform(su2_matrix)
      assert qml.math.allclose(op_quaternion, quaternion)
  
file_path: pennylane/tests/ops/op_math/test_solovay_kitaev.py
imports: import math
  import pytest
  import scipy
  import pennylane
  from pennylane.ops.op_math.decompositions.solovay_kitaev import _SU2_transform, _quaternion_transform, _contains_SU2, _approximate_set, _group_commutator_decompose, sk_decomposition
label_desc: Use image node_id 2 for calling a global function with example usage: test_quaternion_transform(op, quaternion) without return types