code: def update_userpass_password(self, username, password, mount_point='userpass'):
          
          params = {
              'password': password
          }
          return self._adapter.post('/v1/auth/{}/users/{}/password'.format(mount_point, username), json=params)
docs: POST /auth/<mount point>/users/<username>/password
  
          :param username:
          :type username:
          :param password:
          :type password:
          :param mount_point:
          :type mount_point:
          :return:
          :rtype: