but works for any integer type.
For example a random duration from 0 up to 5 minutes is
<code>rand.N(5*time.Minute)</code>.

<li>The Mitchell & Reeds LFSR generator provided by
<a href="/pkg/math/rand/#Source"><code>math/rand</code>’s <code>Source</code></a>
has been replaced by two more modern pseudo-random generator sources:
<a href="/pkg/math/rand/v2/#ChaCha8"><code>ChaCha8</code></a>

or assignment are not yet evaluated.
</li>

<li>
If one or more of the communications can proceed,
a single one that can proceed is chosen via a uniform pseudo-random selection.
Otherwise, if there is a default case, that case is chosen.
If there is no default case, the "select" statement blocks until
at least one of the communications can proceed.
</li>

<li>

or assignment are not yet evaluated.
</li>

<li>
If one or more of the communications can proceed,
a single one that can proceed is chosen via a uniform pseudo-random selection.
Otherwise, if there is a default case, that case is chosen.
If there is no default case, the "select" statement blocks until
at least one of the communications can proceed.
</li>

<li>