cti-python-stix2/stix2/common.py

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"""STIX 2 Common Data Types and Properties"""
from .other import ExternalReference, GranularMarking
from .properties import (BooleanProperty, ListProperty, ReferenceProperty,
TimestampProperty)
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from .utils import NOW
COMMON_PROPERTIES = {
# 'type' and 'id' should be defined on each individual type
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'created': TimestampProperty(default=lambda: NOW),
'modified': TimestampProperty(default=lambda: NOW),
'external_references': ListProperty(ExternalReference),
'revoked': BooleanProperty(),
'created_by_ref': ReferenceProperty(type="identity"),
'object_marking_refs': ListProperty(ReferenceProperty(type="marking-definition")),
'granular_markings': ListProperty(GranularMarking),
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}