def check_ama_installed(ama_vers):
    """
    Checks to verify AMA is installed and only has one version installed at a time
    """
    ama_installed_vers = ama_vers
    ama_exists = (len(ama_installed_vers) > 0)
    ama_unique = (len(ama_installed_vers) == 1)
    return (ama_exists, ama_unique)