Get the Capakey Gateway

    :rtype: :class:`crabpy.gateway.capakey.CapakeyRestGateway`

def get_capakey(registry):
    """
    Get the Capakey Gateway

    :rtype: :class:`crabpy.gateway.capakey.CapakeyRestGateway`
    """
    # argument might be a config or a request
    regis = getattr(registry, 'registry', None)
    if regis is None:
        regis = registry

    return regis.queryUtility(ICapakey)