def get_object(brain_or_object):
    """Get the full content object

    :param brain_or_object: A single catalog brain or content object
    :type brain_or_object: PortalObject/ATContentType/DexterityContentType
    /CatalogBrain
    :returns: The full object
    """
    if not is_object(brain_or_object):
        fail("{} is not supported.".format(repr(brain_or_object)))
    if is_brain(brain_or_object):
        return brain_or_object.getObject()
    return brain_or_object