@java.lang.Override
      public int getEncodingValue() {
        return encoding_;
      }
<pre>
Defines how the feature is encoded into the input tensor. Defaults to
IDENTITY.
</pre>

<code>.google.cloud.vertexai.v1.ExplanationMetadata.InputMetadata.Encoding encoding = 3;
</code>

@return The enum numeric value on the wire for encoding.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ExplanationMetadata.java