@java.lang.Override
    public int getPromptTokensDetailsCount() {
      return promptTokensDetails_.size();
    }
<pre>
Output only. List of modalities that were processed in the request input.
</pre>

<code>
repeated .google.cloud.vertexai.v1.ModalityTokenCount prompt_tokens_details = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GenerateContentResponse.java