@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(customClassId_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, customClassId_);
    }
    for (int i = 0; i < items_.size(); i++) {
      output.writeMessage(3, items_.get(i));
    }
    getUnknownFields().writeTo(output);
  }
<pre>
A collection of class items.
</pre>

<code>repeated .google.cloud.speech.v1.CustomClass.ClassItem items = 3;</code>
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/CustomClass.java