public Builder setHttpBody(com.google.api.HttpBody.Builder builderForValue) {
      if (httpBodyBuilder_ == null) {
        httpBody_ = builderForValue.build();
      } else {
        httpBodyBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
The prediction input. Supports HTTP headers and arbitrary data payload.
</pre>

<code>.google.api.HttpBody http_body = 2;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/StreamRawPredictRequest.java