@java.lang.Override
    public Builder addRepeatedField(
        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
      return super.addRepeatedField(field, value);
    }
<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