from PLC.Parameter import Parameter, Mixed
from PLC.Auth import Auth
-from PLC.PersonTags import PersonTag, PersonTags
from PLC.Persons import Person, Persons
+from PLC.TagTypes import TagType, TagTypes
+from PLC.PersonTags import PersonTag, PersonTags
# need to import so the core classes get decorated with caller_may_write_tag
from PLC.AuthorizeHelpers import AuthorizeHelpers