private void buildPartial0(com.google.cloud.texttospeech.v1.VoiceSelectionParams result) {
      int from_bitField0_ = bitField0_;
      if (((from_bitField0_ & 0x00000001) != 0)) {
        result.languageCode_ = languageCode_;
      }
      if (((from_bitField0_ & 0x00000002) != 0)) {
        result.name_ = name_;
      }
      if (((from_bitField0_ & 0x00000004) != 0)) {
        result.ssmlGender_ = ssmlGender_;
      }
      int to_bitField0_ = 0;
      if (((from_bitField0_ & 0x00000008) != 0)) {
        result.customVoice_ =
            customVoiceBuilder_ == null ? customVoice_ : customVoiceBuilder_.build();
        to_bitField0_ |= 0x00000001;
      }
      if (((from_bitField0_ & 0x00000010) != 0)) {
        result.voiceClone_ = voiceCloneBuilder_ == null ? voiceClone_ : voiceCloneBuilder_.build();
        to_bitField0_ |= 0x00000002;
      }
      result.bitField0_ |= to_bitField0_;
    }
<pre>
Description of which voice to use for a synthesis request.
</pre>

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