private void ensureModelFeatureIsMutable() {
      if (!((bitField0_ & 0x00000001) != 0)) {
        modelFeature_ =
            new java.util.ArrayList<com.google.cloud.speech.v2.ModelFeature>(modelFeature_);
        bitField0_ |= 0x00000001;
      }
    }
<pre>
Represents the collection of features belonging to a model
</pre>

Protobuf type {@code google.cloud.speech.v2.ModelFeatures}
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/ModelFeatures.java