public EntityRecognizerMetadata withNumberOfTrainedDocuments(Integer numberOfTrainedDocuments) {
        setNumberOfTrainedDocuments(numberOfTrainedDocuments);
        return this;
    }
<p>
The number of documents in the input data that were used to train the entity recognizer. Typically this is 80 to
90 percent of the input documents.
</p>

@param numberOfTrainedDocuments
       The number of documents in the input data that were used to train the entity recognizer. Typically this is
       80 to 90 percent of the input documents.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-comprehend/src/main/java/com/amazonaws/services/comprehend/model/EntityRecognizerMetadata.java