Simple feedback server

feedback-server/externs/node/v8/HookCallbacks.hx

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+package node.v8;
+
+/**
+	Key events in the lifetime of a promise have been categorized into four areas: creation of a promise, before/after a continuation handler is called or
+	around an await, and when the promise resolves or rejects.
+	
+	Because promises are asynchronous resources whose lifecycle is tracked via the promise hooks mechanism, the `init()`, `before()`, `after()`, and
+	`settled()` callbacks must not be async functions as they create more promises which would produce an infinite loop.
+**/
+typedef HookCallbacks = {
+	@:optional
+	dynamic function init(promise:js.lib.Promise<Any>, parent:js.lib.Promise<Any>):Void;
+	@:optional
+	dynamic function before(promise:js.lib.Promise<Any>):Void;
+	@:optional
+	dynamic function after(promise:js.lib.Promise<Any>):Void;
+	@:optional
+	dynamic function settled(promise:js.lib.Promise<Any>):Void;
+};