PromucFlow_constructor/app/client/src/components/editorComponents/ToastComponent.tsx

import { Position, Toaster } from "@blueprintjs/core";

// To add a toast import this instance and call .show()
// https://blueprintjs.com/docs/#core/components/toast.example
export const AppToaster = Toaster.create({
  position: Position.BOTTOM_RIGHT,
});