<p>In <a href="https://github.com/mlpack/mlpack/pull/708#discussion_r71805055">src/mlpack/core/tree/vantage_point_tree/typedef.hpp</a>:</p>
<pre style='color:#555'>> @@ -0,0 +1,26 @@
> +/**
> + * @file typedef.hpp
> + *
> + * Template typedefs for the VantagePointTree class that satisfy the
> + * requirements of the TreeType policy class.
> + */
> +#ifndef MLPACK_CORE_TREE_VANTAGE_POINT_TREE_TYPEDEF_HPP
> +#define MLPACK_CORE_TREE_VANTAGE_POINT_TREE_TYPEDEF_HPP
> +
> +// In case it hasn't been included yet.
> +#include "../vantage_point_tree.hpp"
> +
> +namespace mlpack {
> +namespace tree {
> +
</pre>
<p>We should add a quick comment here on what the tree is, so that users will find it in the documentation: <a href="http://mlpack.org/docs/mlpack-git/doxygen.php?doc=namespacemlpack_1_1tree.html#typedef-members">http://mlpack.org/docs/mlpack-git/doxygen.php?doc=namespacemlpack_1_1tree.html#typedef-members</a> (I wish that page was less ugly but doxygen is not the best).</p>
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