ThoughtSpot REST API SDK Repository for automatically generated REST API SDK projects, which are currently inactive. The SDKs for V2 Beta are deprecated and have not been updated for the GA V2.0 release.
api-spec directory does has the current openapi specs for V2.0 REST API.
Please see https://github.com/thoughtspot/thoughtspot_rest_api_v1_python/ for an implementation the V1 and V2.0 REST APIs in Python.