code: def test_phred_to_log10_prob(self):
      self.assertEqual(-1, math.phred_to_log10_perror(10))
  
file_path: deepvariant/third_party/nucleus/util/python/math_wrap_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import absltest
  from third_party.nucleus.util.python import math
label_desc: Use image node_id 3 for calling the MathWrapTest obj's underlying member method code with example usage: obj.test_phred_to_log10_prob() without return types