code: def test_refine():
      assert refine(C.T, Q.symmetric(C)) == C
  
file_path: sympy/sympy/matrices/expressions/tests/test_transpose.py
imports: from sympy.functions import adjoint, conjugate, transpose
  from sympy.matrices.expressions import MatrixSymbol, Adjoint, trace, Transpose
  from sympy.matrices import eye, Matrix
  from sympy.assumptions.ask import Q
  from sympy.assumptions.refine import refine
  from sympy.core.singleton import S
  from sympy.core.symbol import symbols
label_desc: Use image node_id 3 for calling a global function with example usage: test_refine() without return types