code: def test_PythonRational__abs__():
      assert abs(QQ(-1, 2)) == QQ(1, 2)
      assert abs(QQ(1, 2)) == QQ(1, 2)
  
file_path: sympy/sympy/polys/tests/test_pythonrational.py
imports: from sympy.polys.domains import PythonRational
  from sympy.testing.pytest import raises
label_desc: Use image node_id 5 for calling a global function with example usage: test_PythonRational__abs__() without return types