public Builder clearPromptFeedback() {
      bitField0_ = (bitField0_ & ~0x00000010);
      promptFeedback_ = null;
      if (promptFeedbackBuilder_ != null) {
        promptFeedbackBuilder_.dispose();
        promptFeedbackBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Output only. Content filter results for a prompt sent in the request.
Note: Sent only in the first stream chunk.
Only happens when no candidates were generated due to content violations.
</pre>

<code>
.google.cloud.vertexai.v1.GenerateContentResponse.PromptFeedback prompt_feedback = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/GenerateContentResponse.java