Got at least one data fetching method working; turns out, we can't use a patched LogicStack to get the data

Vendor/Swan.Lite-3.1.0/Validators/IValidator.cs

@@ -0,0 +1,21 @@
+namespace Swan.Validators
+{
+    /// <summary>
+    /// A simple Validator interface.
+    /// </summary>
+    public interface IValidator
+    {
+        /// <summary>
+        /// The error message.
+        /// </summary>
+        string ErrorMessage { get; }
+
+        /// <summary>
+        /// Checks if a value is valid.
+        /// </summary>
+        /// <typeparam name="T">The type.</typeparam>
+        /// <param name="value"> The value.</param>
+        /// <returns>True if it is valid.False if it is not.</returns>
+        bool IsValid<T>(T value);
+    }
+}