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diff --git a/libs/assimp/test/unit/RandomNumberGeneration.h b/libs/assimp/test/unit/RandomNumberGeneration.h
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+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#ifndef ASSIMP_RANDOM_NUMBER_GENERATION_H
+#define ASSIMP_RANDOM_NUMBER_GENERATION_H
+
+#include <random>
+
+namespace Assimp {
+
+/** Helper class to use for generating pseudo-random
+ *  real numbers, with a uniform distribution. */
+template<typename T>
+class RandomUniformRealGenerator {
+public:
+    RandomUniformRealGenerator() :
+            dist_(),
+            rd_(),
+            re_(rd_())  {
+        // empty
+    }
+
+    RandomUniformRealGenerator(T min, T max) :
+            dist_(min, max),
+            rd_(),
+            re_(rd_())  {
+        // empty
+    }
+
+    inline T next() {
+        return dist_(re_);
+    }
+
+private:
+    std::uniform_real_distribution<T> dist_;
+    std::random_device rd_;
+    std::default_random_engine re_;
+};
+
+using RandomUniformFloatGenerator = RandomUniformRealGenerator<float>;
+
+}
+
+#endif // ASSIMP_RANDOM_NUMBER_GENERATION_H