@java.lang.Override
  public java.util.List<? extends com.google.cloud.vertexai.api.ContentOrBuilder>
      getContentsOrBuilderList() {
    return contents_;
  }
<pre>
Optional. Input content.
</pre>

<code>
repeated .google.cloud.vertexai.v1.Content contents = 4 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/CountTokensRequest.java