Modifying Auth TACACS config with Python or REST

Is it possible to use Python SDK or the REST API to change the TACACS+ configuration? I am running 11.5.3 and am having trouble finding documentation on either the REST calls themselves or how to script the calls using Python.

Ultimately I'll need to change a couple hundred vCMP hosts, LTM's and GTM's to point to a new TACACS+ server. I wanted to write a quick pythons script to look through my devices something like this...

for loadBalancer in loadBalancers:
    mgmt = ManagementRoot(loadBalancer['DeviceName'], username, password)
    tacacs = mgmt.tm.auth.tacacs.modify(\
        name="system-auth",\
        description="new tacacs server",\
        protocol="ip",\
        secret="$M$*******************",\
        servers="{ 10.10.10.1 10.10.10.2 }",\
        service="ppp"\
        )

Thanks in advance for any help!

Jeff