The PrexView Python SDK provides a way to convert your data to different formats. Data to use for the document creation, must be xml or json and includes format, graphics, loops and more. PrexView allows you to design templates, transform your data to readable documents in PDF, HTML, PNG or JPG and check the transactions log.
One of the challenges with building an application these days is the number of dependencies that application will actually have on other applications. Ideally in order to know how that application will actually perform application developers would be able to test their application against the application it depends on running in production. The odds of that happening, however, are slim to none, especially if that other application is running as a cloud service that has to be always available to end users.