HandDriverUPM/ThirdParty/NaughtyAttributes/Core/ValidatorAttributes/RequiredAttribute.cs

using System;

namespace NaughtyAttributes
{
	[AttributeUsage(AttributeTargets.Field, AllowMultiple = false, Inherited = true)]
	public class RequiredAttribute : ValidatorAttribute
	{
		public string Message { get; private set; }

		public RequiredAttribute(string message = null)
		{
			Message = message;
		}
	}
}