public int getAdditionalInfoCount() {
    return internalGetAdditionalInfo().getMap().size();
  }
<pre>
The original product which holds the custom processor's functionality.
</pre>

<code>.google.cloud.visionai.v1.CustomProcessorSourceInfo.SourceType source_type = 1;</code>

@return The sourceType.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CustomProcessorSourceInfo.java