message: convert to list instead of error
diff: @@ -2044,7 +2044,7 @@ def atrous_conv2d_transpose(value,
  output_shape_.get_shape()))
  if isinstance(output_shape, tuple):
  - raise ValueError("output_shape cannot be of type tuple")
  + output_shape = list(output_shape)
  if isinstance(output_shape, (list, np.ndarray)):
  # output_shape's shape should be == [4] if reached this point.
  