'Create and return a new logged out id and timestamp.
This also triggers an loid_event in the event pipeline.
:param request: current :py:module:`pylons` request object
:param context: current :py:module:`pylons` context object
:rtype: :py:class:`LoId`
:returns: new ``LoId``'

@classmethod
def _create(cls, request, context):

    loid = cls(request=request, context=context, new=True, loid=randstr(LOID_LENGTH, LOID_CHARSPACE))
    loid._trigger_event('create_loid')
    return loid
