Document Categorizer example references non-existant method signature

In the Document Categorizer section of the manual https://opennlp.apache.org/docs/1.9.1/manual/opennlp.html#tools.doccat there is a code snippet in the training section:

  model = DocumentCategorizerME.train("en", sampleStream);

However, no matching method is present in the javadocs at https://opennlp.apache.org/docs/1.9.1/apidocs/opennlp-tools/opennlp/tools/doccat/DocumentCategorizerME.html . The nearest seems to be one that takes two additional required parameters: https://opennlp.apache.org/docs/1.9.1/apidocs/opennlp-tools/opennlp/tools/doccat/DocumentCategorizerME.html#train-java.lang.String-opennlp.tools.util.ObjectStream-opennlp.tools.util.TrainingParameters-opennlp.tools.doccat.DoccatFactory-

It looks like the code snippet is out of date, and needs updating to cover the API changes that seem to have happened