code: def get_mfa(self, auth_resp):
          
          devices = auth_resp['data']['devices']
          if len(devices) == 1:
              # If there's only one option, don't show selection prompt
              selection = "0"
              x = 1
          else:
              print("Found the following MFA devices")
              x=0
              for device in devices:
                  print("{0}: {1}".format(x, device['name']))
                  x = x + 1
  
              selection = input("Enter a selection: ")
          if selection.isdigit():
              selection_num=int(str(selection))
          else:
              raise CerberusClientException( str.join('', ["Selection: '", selection,"' is not a number"]))
  
          if (selection_num >= x) or (selection_num < 0):
              raise CerberusClientException(str.join('', ["Selection: '", str(selection_num), "' is out of range"]))
  
          sec_code = input('Enter ' + auth_resp['data']['devices'][selection_num]['name'] + ' security code: ')
  
          mfa_resp = post_with_retry(
              self.cerberus_url + '/v2/auth/mfa_check',
              json={'otp_token': sec_code,
                    'device_id': auth_resp['data']['devices'][selection_num]['id'],
                    'state_token': auth_resp['data']['state_token']},
              headers=self.HEADERS
          )
  
          if mfa_resp.status_code != 200:
              throw_if_bad_response(mfa_resp)
  
          return mfa_resp.json()
docs: Gets MFA code from user and returns response which includes the client token