Rest Argument should be add.

[sonygod]

code from cocos creator .d.ts

 export function Class(options?: {name?: string; extends?: Function; ctor?: Function; __ctor__?: Function; properties?: any; statics?: any; mixins?: Function[]; editor?: {executeInEditMode?: boolean; requireComponent?: Function; menu?: string; executionOrder?: number; disallowMultiple?: boolean; playOnFocus?: boolean; inspector?: string; icon?: string; help?: string; }; update?: Function; lateUpdate?: Function; onLoad?: Function; start?: Function; onEnable?: Function; onDisable?: Function; onDestroy?: Function; onFocusInEditor?: Function; onLostFocusInEditor?: Function; resetInEditor?: Function; onRestore?: Function; _getLocalBounds?: Function; }): Function;	

it's seem typescript only options this arguments but not limit other arguments

here is piece of haxe test code

class Main {
	public static var name:String = "main";

	static function main() {
		Cc.Class({
			'extends': Component,
			properties: {
				
			},

			onLoad: function() {
				
			},
			callback: function(event, customEventData) {
			
			},
			update: function(dt) {},
		});
	}
}

callback is not allow here in haxe,but js and typescript can .

maybe you should add some rest Argument for that and unlimit parms in Cc.Class

https://docs.cocos.com/creator/manual/en/components/button.html

[haxiomic]

Rest arguments are supported but this function does not declare any

This function instead takes an object

The type of the object does not include a callback field

Haxe has stricter rules for structure unification than typescript and will complain sometimes about additional fields

This is not something dts2hx can change

You could open an issue on the creator type definitions to add the callback field

[haxiomic]

Here’s a related issue and explaination
HaxeFoundation/haxe#3192 (comment)

I think there’s an argument to be made for allowing extra fields for externs in haxe compiler (maybe we metadata)

[sonygod]

Can you give an example?

[haxiomic]

var options: {
    var field: String
} = {
    field: 'hello',
    extra: 'world', // this field is disallowed because it's not included in the structure
// this is done because generally if you're directly assigning to a structure like this, extra fields are usually a typo
}

This works however

var options = {
    field: 'hello',
    extra: 'world',
}
function call(options: Options);
call(options); // OK

I think if you wrap the field name in quotes it will probably work. Try this

Cc.Class({
    "callback": function(event, customEventData) {},
});

[sonygod]

I think if you wrap the field name in quotes it will probably work.

no ,it's not work.

[haxiomic]

Ahh ok, nothing we can do then