public Builder setPostProcessingCloudFunctionBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      postProcessingCloudFunction_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }
<pre>
If not empty, the prediction result will be sent to the specified cloud
function for post processing.
* The cloud function will receive AppPlatformCloudFunctionRequest where
the annotations field will be the json format of proto PredictResponse.
* The cloud function should return AppPlatformCloudFunctionResponse with
PredictResponse stored in the annotations field.
* To drop the prediction output, simply clear the payload field in the
returned AppPlatformCloudFunctionResponse.
</pre>

<code>string post_processing_cloud_function = 3;</code>

@param value The bytes for postProcessingCloudFunction to set.
@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/VertexCustomConfig.java