Creates a summary that contains a layout.

  When users navigate to the custom scalars dashboard, they will see a layout
  based on the proto provided to this function.

  Args:
    scalars_layout: The scalars_layout_pb2.Layout proto that specifies the
        layout.

  Returns:
    A summary proto containing the layout.

def pb(scalars_layout):
  """Creates a summary that contains a layout.

  When users navigate to the custom scalars dashboard, they will see a layout
  based on the proto provided to this function.

  Args:
    scalars_layout: The scalars_layout_pb2.Layout proto that specifies the
        layout.

  Returns:
    A summary proto containing the layout.
  """
  # TODO(nickfelt): remove on-demand imports once dep situation is fixed.
  import tensorflow.compat.v1 as tf

  assert isinstance(scalars_layout, layout_pb2.Layout)
  tensor = tf.make_tensor_proto(
      scalars_layout.SerializeToString(), dtype=tf.string)
  tf_summary_metadata = tf.SummaryMetadata.FromString(
      metadata.create_summary_metadata().SerializeToString())
  summary = tf.Summary()
  summary.value.add(tag=metadata.CONFIG_SUMMARY_TAG,
                    metadata=tf_summary_metadata,
                    tensor=tensor)
  return summary