def list(client, element, mac, **kwargs):
    """List elements.

    Lists information for a given ELEMENT or all elements in the
    organization.

    """
    include = [Sensor]
    if element:
        elements = [Element.lookup(client, element, mac=mac, include=include)]
    else:
        metadata = kwargs.get('metadata') or None
        elements = Element.where(client, include=include, metadata=metadata)
    Element.display(client, elements, include=include)