@java.lang.Override
      public com.google.cloud.vertexai.api.CachedContent.UsageMetadata getDefaultInstanceForType() {
        return com.google.cloud.vertexai.api.CachedContent.UsageMetadata.getDefaultInstance();
      }
<pre>
Metadata on the usage of the cached content.
</pre>

Protobuf type {@code google.cloud.vertexai.v1.CachedContent.UsageMetadata}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/CachedContent.java