e&rsquo;s an
<a href=https://github.com/istio/api/blob/release-1.19/authentication/v1alpha1/policy_deepcopy.gen.go>example</a>
of the generated <code>deepcopy</code> method.</p></li><li><p><strong>Marshaling and Unmarshaling types to/from JSON</strong> - For the types generated
from proto definitions, it is often problematic to use the default Go JSON
encoder/decoder as there are various fields like protobuf&rsquo;s <code>oneof</code> which requires
special handling. Additionally, any Proto fields with unde