The output of SDAPI build are DLL files. Where and how do we reference them?

The SDAPI RELEASE build is creating the following files:

1. cpprest_2_10.dll
2. jsoncpp.dll
3. jsoncpp.pdb
4. jsoncpp_static.lib
5. libcurl.dll
6. sdapi.dll
7. sdapi.exp
8. sdapi.lib
9. sdapi.pdb
10. sdapi_static.lib
11. wastorage.dll
12. zlib1.dll

Since there is no EXE file generated, it is not clear which code will be calling the above files. If it is the SDUTIL calling these DLL files, the python code does not have ctypes to call them.