message: fix python test case
diff: @@ -4969,9 +4969,9 @@ class NonMaxSuppressionWithScoresTest(test_util.TensorFlowTestCase):
  [0, 10, 1, 11], [0, 10.1, 1, 11.1], [0, 100, 1, 101]]
  scores_np = [0.9, 0.75, 0.6, 0.95, 0.5, 0.3]
  max_output_size_np = 6
  - iou_threshold_np = 1.0
  + iou_threshold_np = 0.5
  score_threshold_np = 0.0
  - soft_nms_sigma_np = 0.5
  + soft_nms_sigma_np = 1.0
  boxes = constant_op.constant(boxes_np)
  scores = constant_op.constant(scores_np)
  max_output_size = constant_op.constant(max_output_size_np)
  