message: [tf.data] Update size of csv_dataset_op_test to medium
diff: @@ -60,7 +60,7 @@ py_test(
  py_test(
  name = "csv_dataset_op_test",
  - size = "small",
  + size = "medium",
  srcs = ["csv_dataset_op_test.py"],
  srcs_version = "PY2AND3",
  tags = ["no_pip"],
  