Runtime/Inference/Tts/VoiceStyleDropdownAttribute.cs

using UnityEngine;
namespace OnDeviceAgent.Inference
{

    public sealed class VoiceStyleDropdownAttribute : PropertyAttribute
    {
        public string Directory;
        public string DirectoryField;

        public VoiceStyleDropdownAttribute(
            string directory = "Model/Supertonic/VoiceStyles",
            string directoryField = "voiceStylesDirectory")
        {
            Directory = directory;
            DirectoryField = directoryField;
        }
    }
}