from marshmallow import Schema, fields, RAISE
from marshmallow.validate import Regexp, Length


class DescriptionSchema(Schema):
    tag = fields.Str(required=True, validate=[Regexp("^[a-zA-Z]+[0-9a-zA-Z_]*$"), Length(min=2, max=32)])

    class Meta:
        unknown = RAISE  # Later this could be changed to EXCLUDE to maintain compatibility among versions