<p>In <a href="https://github.com/mlpack/mlpack/pull/752#discussion_r75305914">src/mlpack/methods/ne/neat.hpp</a>:</p>
<pre style='color:#555'>> +#include <algorithm>
> +
> +#include <mlpack/core.hpp>
> +
> +#include "link_gene.hpp"
> +#include "neuron_gene.hpp"
> +#include "genome.hpp"
> +#include "species.hpp"
> +#include "population.hpp"
> +#include "tasks.hpp"
> +#include "parameters.hpp"
> +
> +namespace mlpack {
> +namespace ne {
> +
> +struct LinkInnovation {
</pre>
<p>Can you add a comment that describes why this struct is useful.</p>
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