Adds an "IUnified Interface" to the create asset context menu in Unity3D. The template creates the appropriate container needed for IUnified automatically.

82-IUnified Interface-INewInterface.cs.txt

using System;

public interface #SCRIPTNAME# {

}

[Serializable]
public class #SCRIPTNAME#Container : IUnifiedContainer<#SCRIPTNAME#> {}

README.md

1. Save script.
2. Drop these script template in: /Program Files/Unity/Editor/Data/Resources/ScriptTemplates (Win) /Applications/Unity.app/Contents/Resources/ScriptTemplates (Mac) /opt/Unity/Editor/Data/Resources/ScriptTemplates (Linux)
3. Restart Unity
4. Create Interface through context menu, enjoy and build better software =)

OR (even easier)

1. Put DownloadIUnifiedTemplate.cs inside your Asset folder (see script below)
2. Click Menu -> Tools -> Add IUnified Template
3. Restart

Link to IUnified: https://assetstore.unity.com/packages/tools/localization/iunified-12117

PS: I'm not related to the author of this awesome little tool.

DownloadIUnifiedTemplate.cs

using System.Collections;
using System.IO;
using UnityEditor;
using UnityEngine;
using UnityEngine.Networking;

/// <summary>
/// Download template from gist. Placed in the menu under "Tools".
/// </summary>
public class DownloadIUnifiedTemplate {

    /// <summary>
    /// Add IUnified Interface from Gist to context menu.
    /// </summary>
    [MenuItem("Tools/Add IUnified Template")]
    private static void AddCustomTemplate()
    {
        string gistUrl = @"https://gist.githubusercontent.com/travelhawk/49f0672f5f4a3dbbcc0e9d7cb70c5c75/raw";

        UnityWebRequest webRequest = UnityWebRequest.Get(gistUrl);
        webRequest.SendWebRequest().completed += (asyncOp) =>
        {
            if (webRequest.isHttpError || webRequest.isNetworkError)
            {
                Debug.Log("can't download template: " + webRequest.error);
            }
            else
            {
                // save to templates
                string fileName = "82-IUnified Interface-INewInterface.cs.txt";
                string content = webRequest.downloadHandler.text;
                string unityTemplatePath = Path.Combine(EditorApplication.applicationContentsPath, "Resources/ScriptTemplates");
                string templateFilePath = Path.Combine(unityTemplatePath, fileName);
                if (!File.Exists(templateFilePath))
                {
                    File.WriteAllText(templateFilePath, content);
                    AssetDatabase.Refresh();
                    Debug.Log("Saved template successfully. Please restart Unity to see the changes.");
                }
            }
        };
    }

}