code: def update_custom_fields_of_password(self, ID, data):
          
          # http://teampasswordmanager.com/docs/api-passwords/#update_cf_password
          log.info('Update custom fields of password %s with %s' % (ID, data))
          self.put('passwords/%s/custom_fields.json' % ID, data)
docs: Update custom fields definitions of a password.