code: def create_user(self, username, password, name, email):
          
          method = 'POST'
          endpoint = '/rest/v1/users/{}'.format(self.client.sauce_username)
          body = json.dumps({'username': username, 'password': password,
                             'name': name, 'email': email, })
          return self.client.request(method, endpoint, body)
docs: Create a sub account.