message: Remove duplicate imports in dynamic_stitch_op_test.py
  There is a duplicate `from tensorflow.python.framework import dtypes`
  in dynamic_stitch_op_test.py (See line 24 above).
diff: @@ -27,7 +27,6 @@ from tensorflow.python.ops import data_flow_ops
  from tensorflow.python.ops import gradients_impl
  import tensorflow.python.ops.data_flow_grad # pylint: disable=unused-import
  from tensorflow.python.platform import test
  -from tensorflow.python.framework import dtypes
  class DynamicStitchTestBase(object):
  