1 files changed, 26 insertions, 0 deletions
diff --git a/src/SMAPI/IAssetDataForDictionary.cs b/src/SMAPI/IAssetDataForDictionary.cs
new file mode 100644
index 00000000..53c24346
--- /dev/null
+++ b/src/SMAPI/IAssetDataForDictionary.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+
+namespace StardewModdingAPI
+{
+    /// <summary>Encapsulates access and changes to dictionary content being read from a data file.</summary>
+    public interface IAssetDataForDictionary<TKey, TValue> : IAssetData<IDictionary<TKey, TValue>>
+    {
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Add or replace an entry in the dictionary.</summary>
+        /// <param name="key">The entry key.</param>
+        /// <param name="value">The entry value.</param>
+        void Set(TKey key, TValue value);
+
+        /// <summary>Add or replace an entry in the dictionary.</summary>
+        /// <param name="key">The entry key.</param>
+        /// <param name="value">A callback which accepts the current value and returns the new value.</param>
+        void Set(TKey key, Func<TValue, TValue> value);
+
+        /// <summary>Dynamically replace values in the dictionary.</summary>
+        /// <param name="replacer">A lambda which takes the current key and value for an entry, and returns the new value.</param>
+        void Set(Func<TKey, TValue, TValue> replacer);
+    }
+}