Reapply "."

This reverts commit 685260080e.

message.js

@@ -0,0 +1,33 @@
+// import { Type, Static } from "@sinclair/typebox";
+const {Type, Static} = require("@sinclair/typebox");
+
+export class ChatEvent {
+	// declare ["constructor"]: typeof ChatEvent;
+	// as const
+	static type = "event";
+	// as const
+	static src = ["control", "instance"];
+	// as const
+	static dst = "instance";
+	// as const
+	static plugin = "global_chat";
+	static permission = null;
+
+	/*
+	constructor(
+		public instanceName: string,
+		public content: string,
+	) {
+	}
+	*/
+
+	static jsonSchema = Type.Object({
+		"instanceName": Type.String(),
+		"content": Type.String(),
+	});
+
+	// json: Static<typeof ChatEvent.jsonSchema>
+	static fromJSON(json) {
+		return new this(json.instanceName, json.content);
+	}
+}