public Builder mergeFrom(com.google.cloud.speech.v1.ListCustomClassesResponse other) {
      if (other == com.google.cloud.speech.v1.ListCustomClassesResponse.getDefaultInstance())
        return this;
      if (customClassesBuilder_ == null) {
        if (!other.customClasses_.isEmpty()) {
          if (customClasses_.isEmpty()) {
            customClasses_ = other.customClasses_;
            bitField0_ = (bitField0_ & ~0x00000001);
          } else {
            ensureCustomClassesIsMutable();
            customClasses_.addAll(other.customClasses_);
          }
          onChanged();
        }
      } else {
        if (!other.customClasses_.isEmpty()) {
          if (customClassesBuilder_.isEmpty()) {
            customClassesBuilder_.dispose();
            customClassesBuilder_ = null;
            customClasses_ = other.customClasses_;
            bitField0_ = (bitField0_ & ~0x00000001);
            customClassesBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getCustomClassesFieldBuilder()
                    : null;
          } else {
            customClassesBuilder_.addAllMessages(other.customClasses_);
          }
        }
      }
      if (!other.getNextPageToken().isEmpty()) {
        nextPageToken_ = other.nextPageToken_;
        bitField0_ |= 0x00000002;
        onChanged();
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
Message returned to the client by the `ListCustomClasses` method.
</pre>

Protobuf type {@code google.cloud.speech.v1.ListCustomClassesResponse}
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/ListCustomClassesResponse.java