def METHOD_NAME(user=None, domain="user"):
    """
    Get the default keychain
    user
        The user to check the default keychain of
    domain
        The domain to use valid values are user|system|common|dynamic, the default is user
    CLI Example:
    .. code-block:: bash
        salt '*' keychain.get_default_keychain
    """
    cmd = "security default-keychain -d {}".format(domain)
    return __salt__["cmd.run"](cmd, runas=user)