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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _add_cloud_distro_check(cloud_archive_release, openstack_release):
 """Add the cloud pocket, but also check the cloud_archive_release against the current distro, and use the openstack_release as the full lookup. This just calls _add_cloud_pocket() with the openstack_release as pocket to get the correct cloud-archive.list for dpkg to work with. :param cloud_archive_release:String, codename for the distro release. :param openstack_release: String, spec for the release to look up in the CLOUD_ARCHIVE_POCKETS :raises: SourceConfigError if this is the wrong distro, or the pocket spec doesn't exist. """

    _verify_is_ubuntu_rel(cloud_archive_release, openstack_release)
    _add_cloud_pocket("{}-{}".format(cloud_archive_release, openstack_release))