hi! are there any examples/tutorials that I can see to understand how to use httpstream class for nested api calls? First call is POST and next two would be GET. The response from first POST call would be used to make the url for second call (GET) and the response from second GET call will be used to make URL for third GET call and that call generates the response data which will be the stream that I need to get from my api. i.e. the schema for the data that I need will be for only third call's response.