import mir.random.engine;
auto gen = Random(unpredictableSeed);
auto rv = uniformVar(-10, 10); // [-10, 10]
static assert(isRandomVariable!(typeof(rv)));
auto x = rv(gen); // random variable
assert(rv.min == -10);
assert(rv.max == 10);

import mir.random.engine;
Random* gen = threadLocalPtr!Random;
auto rv = UniformVariable!int(-10, 10); // [-10, 10]
auto x = rv(gen); // random variable
assert(rv.min == -10);
assert(rv.max == 10);