code: def test_continued_frac():
      assert getr(513, 1024, 10) == 2
      assert getr(169, 1024, 11) == 6
      assert getr(314, 4096, 16) == 13
  
imports: from sympy.testing.pytest import XFAIL
  from sympy.physics.quantum.qapply import qapply
  from sympy.physics.quantum.qubit import Qubit
  from sympy.physics.quantum.shor import CMod, getr
label_desc: Use image node_id 2 for calling a global function with example usage: test_continued_frac() without return types