Where can I get the Python SDK [.whl file] for pix4d engine? T

Where can I get the Python SDK (Windows)[.whl file] for pix4d engine? The whl file did not exist in the download link below.
https://cloud.pix4d.com/download/

there was no link to the whl file on the following page.

https://developer.pix4d.com/server/1.4.0/quickstart.html#installation

Hello,
The SDK is only accessible with a Pix4Dengine license. Please contact our sales team for more information about this kind of licenses.