Auth token. This is the token returned by get_auth_token(). Just the token, do not include "Bearer" in this string, that is handled inside the method.
Organization context. This is provided by the Finite State API management. It looks like "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx".
Blocking call: Initiates generation of a report, and returns a pre-signed URL for downloading the report. This may take several minutes to complete, depending on the size of the report.