block">Set a callback to create a bean instance.
 <p>
 The <a href="../../../../../jakarta/enterprise/inject/Instance.html" title="interface in jakarta.enterprise.inject"><code>Instance</code></a> argument might be used to simulate producer method parameter injection. However, dependent scoped
 bean instances obtained from <a href="../../../../../jakarta/enterprise/inject/Instance.html" title="interface in jakarta.enterprise.inject"><code>Instance</code></a> during the callback execution remain managed unti