setup Biometric
Prompts the user for biometric confirmation and, on success, saves the biometric token for future use
Throws
if trying to request a AccessToken before user has logged in, or after any case where the token has been cleared
if the device does not have biometric authentication enrolled
if the user cancels the biometric prompt
if the setup flow encounters an unrecoverable error and authentication has stopped, contains a message with the error
Http Exception
if the network request fails
if the network request times out (in case of no or slow network)