JS object - how to know which method has been invoked?

const notify = {

success(text) {
	this.show("success", text);
},

error(text) {
	this.show("error", text);
},

show(type, text) {
	// Create a div element containing text. Here "success" and "error" are CSS classes applied to that div.
}

};

notify.success("Done!");
notify.error("Something went wrong");

const notify = {

type: this.called,

text: type(text),

show(type, text) {
	// Create a div element containing text. Here "success" and "error" are CSS classes applied to that div.
}

};

const notify = {

type: this.called,

text: type(text),

show(type, text) {
	// Create a div element containing text. Here "success" and "error" are CSS classes applied to that div.
}

};