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diff --git a/third_party/msgpack/include/msgpack/v1/adaptor/pair.hpp b/third_party/msgpack/include/msgpack/v1/adaptor/pair.hpp
new file mode 100644
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+++ b/third_party/msgpack/include/msgpack/v1/adaptor/pair.hpp
@@ -0,0 +1,83 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2008-2009 FURUHASHI Sadayuki
+//
+//    Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//    http://www.boost.org/LICENSE_1_0.txt)
+//
+#ifndef MSGPACK_V1_TYPE_PAIR_HPP
+#define MSGPACK_V1_TYPE_PAIR_HPP
+
+#include "msgpack/versioning.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/meta.hpp"
+
+#include <utility>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+namespace adaptor {
+
+#if !defined(MSGPACK_USE_CPP03)
+
+template <typename T1, typename T2>
+struct as<std::pair<T1, T2>,
+          typename std::enable_if<msgpack::any_of<msgpack::has_as, T1, T2>::value>::type> {
+    std::pair<T1, T2> operator()(msgpack::object const& o) const {
+        if (o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
+        if (o.via.array.size != 2) { throw msgpack::type_error(); }
+        return std::make_pair(o.via.array.ptr[0].as<T1>(), o.via.array.ptr[1].as<T2>());
+    }
+};
+
+#endif // !defined(MSGPACK_USE_CPP03)
+
+template <typename T1, typename T2>
+struct convert<std::pair<T1, T2> > {
+    msgpack::object const& operator()(msgpack::object const& o, std::pair<T1, T2>& v) const {
+        if(o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
+        if(o.via.array.size != 2) { throw msgpack::type_error(); }
+        o.via.array.ptr[0].convert(v.first);
+        o.via.array.ptr[1].convert(v.second);
+        return o;
+    }
+};
+
+template <typename T1, typename T2>
+struct pack<std::pair<T1, T2> > {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::pair<T1, T2>& v) const {
+        o.pack_array(2);
+        o.pack(v.first);
+        o.pack(v.second);
+        return o;
+    }
+};
+
+template <typename T1, typename T2>
+struct object_with_zone<std::pair<T1, T2> > {
+    void operator()(msgpack::object::with_zone& o, const std::pair<T1, T2>& v) const {
+        o.type = msgpack::type::ARRAY;
+        msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*2, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
+        o.via.array.ptr = p;
+        o.via.array.size = 2;
+        p[0] = msgpack::object(v.first, o.zone);
+        p[1] = msgpack::object(v.second, o.zone);
+    }
+};
+
+} // namespace adaptor
+
+/// @cond
+}  // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+}  // namespace msgpack
+
+#endif // MSGPACK_V1_TYPE_PAIR_HPP