def METHOD_NAME(
    self, username, password, mount_point=DEFAULT_MOUNT_POINT
):
    """
    update password for the user in userpass.
    Supported methods:
        POST: /auth/{mount_point}/users/{username}/password. Produces: 204 (empty body)
    :param username: The username for the user.
    :type username: str | unicode
    :param password: The password for the user. Only required when creating the user.
    :type password: str | unicode
    :param mount_point: The "path" the method/backend was mounted on.
    :type mount_point: str | unicode
    """
    params = {
        "password": password,
    }
    api_path = "/v1/auth/{mount_point}/users/{username}/password".format(
        mount_point=mount_point, username=username
    )
    return self._adapter.post(
        url=api_path,
        json=params,
    )