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

Vendor/EmbedIO-3.5.2/Sessions/Session.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+
+namespace EmbedIO.Sessions
+{
+    /// <summary>
+    /// Provides useful constants related to session management.
+    /// </summary>
+    public static class Session
+    {
+        /// <summary>
+        /// <para>The <seealso cref="StringComparison"/> used to disambiguate session IDs.</para>
+        /// <para>Corresponds to <see cref="StringComparison.Ordinal"/>.</para>
+        /// </summary>
+        public const StringComparison IdComparison = StringComparison.Ordinal;
+
+        /// <summary>
+        /// <para>The <seealso cref="StringComparison"/> used to disambiguate session keys.</para>
+        /// <para>Corresponds to <see cref="StringComparison.InvariantCulture"/>.</para>
+        /// </summary>
+        public const StringComparison KeyComparison = StringComparison.InvariantCulture;
+
+        /// <summary>
+        /// <para>The equality comparer used for session IDs.</para>
+        /// <para>Corresponds to <see cref="StringComparer.Ordinal"/>.</para>
+        /// </summary>
+        public static readonly IEqualityComparer<string> IdComparer = StringComparer.Ordinal;
+
+        /// <summary>
+        /// <para>The equality comparer used for session keys.</para>
+        /// <para>Corresponds to <see cref="StringComparer.InvariantCulture"/>.</para>
+        /// </summary>
+        public static readonly IEqualityComparer<string> KeyComparer = StringComparer.InvariantCulture;
+    }
+}