message: Pylint fix to remove unused import
diff: @@ -21,7 +21,6 @@ from __future__ import print_function
  import numpy as np
  from tensorflow.python.framework import dtypes
  -from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import test_util
  from tensorflow.python.framework import constant_op
  from tensorflow.python.ops import array_ops
  