code: def test_rosenbrock_2d_v2(self):
      self._check_algorithm(
          func=_rosenbrock,
          start_point=[7, -12],
          expected_argmin=[1.0, 1.0],
      )
  
imports: import numpy
  import tensorflow.compat.v2
  import tf_quant_finance
  from tensorflow.python.framework import test_util
label_desc: Use image node_id 8 for calling the ConjugateGradientTest obj's underlying member method code with example usage: obj.test_rosenbrock_2d_v2() without return types