from PLC.Parameter import Parameter, Mixed
from PLC.Persons import Person, Persons
from PLC.Keys import Key, Keys
from PLC.Parameter import Parameter, Mixed
from PLC.Persons import Person, Persons
from PLC.Keys import Key, Keys
roles = ['admin', 'pi', 'tech', 'user']
accepts = [
roles = ['admin', 'pi', 'tech', 'user']
accepts = [