
Get the UniTCM API token
get_unitcm_token.RdChecks in order: (1) session value set via set_unitcm_token(),
(2) environment variable UNITCM_TOKEN, (3) system keyring.

get_unitcm_token.RdChecks in order: (1) session value set via set_unitcm_token(),
(2) environment variable UNITCM_TOKEN, (3) system keyring.