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<p>Get the value of a Ruby instance variable.  Creates a new one with a <code>nil</code> value
if it doesn’t exist yet.</p>
<p>For a version that does not throw, see <a href="../types/rbobjectaccess1.html?swift#failable"><code>failable</code></a>.</p>



            </div>
            <h5>Declaration</h5>
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