2from mongoengine
import EmbeddedDocument, DynamicField, StringField, ComplexDateTimeField
18 collected_at = ComplexDateTimeField(required=
True)
19 name = StringField(max_length=1000, required=
True)
20 tag = StringField(max_length=1000, required=
True)
21 type = StringField(max_length=1000)
22 valid_since = ComplexDateTimeField()
23 valid_until = ComplexDateTimeField()
24 values = DynamicField()