code: def op(scalars_layout, collections=None):
    
    # TODO(nickfelt): remove on-demand imports once dep situation is fixed.
    import tensorflow.compat.v1 as tf
  
    assert isinstance(scalars_layout, layout_pb2.Layout)
    summary_metadata = metadata.create_summary_metadata()
    return tf.summary.tensor_summary(name=metadata.CONFIG_SUMMARY_TAG,
                                     tensor=tf.constant(
                                         scalars_layout.SerializeToString(),
                                         dtype=tf.string),
                                     collections=collections,
                                     summary_metadata=summary_metadata)
docs: 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.
      collections: Optional list of graph collections keys. The new
          summary op is added to these collections. Defaults to
          `[Graph Keys.SUMMARIES]`.
  
    Returns:
      A tensor summary op that writes the layout to disk.