<p><a href="https://github.com/rcurtin" class="user-mention">@rcurtin</a> </p>

<p>Thanks for the guide, I implement the serialization of arma::Cube and provide a simple test on <a href="https://github.com/mlpack/mlpack/pull/520" class="issue-link js-issue-link" data-url="https://github.com/mlpack/mlpack/issues/520" data-id="132646884" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#520</a></p>

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