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<pre><code>30</code></pre>
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<p>You can use the if statement or the <code>orelse</code> keyword, when you want to solve (or deal with) this null value. However, if there is no clear solution to this null value, and the most logic and sane path is to simply panic and raise a loud error in your program when this null value is encountered, you can use the <code>?</code> method of your optional object.</p>
<p>In essenc