def _add_stix_indicators(self, final_indicator_objects, ttp_id):
        """Create and add STIX Indicators for a list of Object History entries. 
        Link each Indicator to their Indicated TTP.

        Note:
            Each STIX Indicator is added to the STIX Package stored in the ``stix_package`` class
            member.

        Args:
            final_indicator_objects: a list of ``maec.bundle.object_history.ObjectHistoryEntry`` objects representing
                the final, pruned list of Objects to be used in the STIX Indicators.
            ttp_id: the id of the STIX TTP that each STIX Indicator should reference as its Indicated TTP.
        """
        object_values_list = []
        actions_list = []
        final_object_list = []

        # Deduplicate the Objects and combine their Actions
        for entry in final_indicator_objects:
            object = entry.object
            # Test if we've already created an Indicator for this Object
            obj_values = BundleDeduplicator.get_object_values(object)
            if obj_values not in object_values_list:
                object_values_list.append(obj_values)
                final_object_list.append(object)
                actions_list.append(entry.get_action_names())
            else:
                object_index = object_values_list.index(obj_values)
                existing_actions = actions_list[object_index]
                existing_actions += entry.get_action_names()

        # Create the STIX Indicators
        for object in final_object_list:
            object_index = final_object_list.index(object)
            indicator = Indicator()
            indicator.title = "Malware Artifact Extracted from MAEC Document"
            indicator.add_indicator_type("Malware Artifacts")
            indicator.add_observable(object.properties)
            # Add the Action-derived description to the Indicator
            description = "Corresponding Action(s): "
            for action_name in actions_list[object_index]:
                description += (action_name + ", ")
            indicator.description = description[:-2]
            # Set the proper Confidence on the Indicator
            confidence = Confidence()
            confidence.value = "Low"
            confidence.description = "Tool-generated Indicator. It is HIGHLY recommended that it be vetted by a human analyst before usage."
            indicator.confidence = confidence
            # Link the Indicator to its Indicated TTP
            ttp = TTP(idref=ttp_id)
            indicator.add_indicated_ttp(ttp)
            # Add the Indicator to the STIX Package
            self.stix_package.add_indicator(indicator)

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None

        if not return_obj:
            return_obj = cls()

        super(Incident, cls).from_obj(obj, return_obj=return_obj)

        if isinstance(obj, cls._binding_class):
            return_obj.time = Time.from_obj(obj.Time)
            return_obj.victims = _Victims.from_obj(obj.Victim)
            return_obj.categories = IncidentCategories.from_obj(obj.Categories)
            return_obj.intended_effects = _IntendedEffects.from_obj(obj.Intended_Effect)
            return_obj.affected_assets = AffectedAssets.from_obj(obj.Affected_Assets)
            return_obj.discovery_methods = DiscoveryMethods.from_obj(obj.Discovery_Method)
            return_obj.coa_taken = _COAsTaken.from_obj(obj.COA_Taken)
            return_obj.coa_requested = _COAsRequested.from_obj(obj.COA_Requested)
            return_obj.confidence = Confidence.from_obj(obj.Confidence)
            return_obj.attributed_threat_actors = AttributedThreatActors.from_obj(obj.Attributed_Threat_Actors)
            return_obj.related_indicators = RelatedIndicators.from_obj(obj.Related_Indicators)
            return_obj.related_observables = RelatedObservables.from_obj(obj.Related_Observables)
            return_obj.leveraged_ttps = LeveragedTTPs.from_obj(obj.Leveraged_TTPs)
            return_obj.related_incidents = RelatedIncidents.from_obj(obj.Related_Incidents)
            return_obj.status = VocabString.from_obj(obj.Status)
            return_obj.history = History.from_obj(obj.History)
            return_obj.responders = _InformationSources.from_obj(obj.Responder)
            return_obj.coordinators = _InformationSources.from_obj(obj.Coordinator)
            return_obj.external_ids = _ExternalIDs.from_obj(obj.External_ID)
            return_obj.reporter = InformationSource.from_obj(obj.Reporter)
            return_obj.impact_assessment = ImpactAssessment.from_obj(obj.Impact_Assessment)
            return_obj.security_compromise = VocabString.from_obj(obj.Security_Compromise)
            return_obj.related_packages = RelatedPackageRefs.from_obj(obj.Related_Packages)

        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.id_ = obj.id
        return_obj.idref = obj.idref
        return_obj.timestamp = obj.timestamp
        if isinstance(obj, cls._binding_class): # ThreatActorType properties
            return_obj.version = obj.version
            return_obj.title = obj.Title
            return_obj.description = StructuredText.from_obj(obj.Description)
            return_obj.short_description = StructuredText.from_obj(obj.Short_Description)
            return_obj.identity = Identity.from_obj(obj.Identity)
            return_obj.types = [Statement.from_obj(x) for x in obj.Type]
            return_obj.motivations = [Statement.from_obj(x) for x in obj.Motivation]
            return_obj.sophistications = [Statement.from_obj(x) for x in obj.Sophistication]
            return_obj.intended_effects = [Statement.from_obj(x) for x in obj.Intended_Effect]
            return_obj.planning_and_operational_supports = [Statement.from_obj(x) for x in obj.Planning_And_Operational_Support]
            return_obj.observed_ttps = ObservedTTPs.from_obj(obj.Observed_TTPs)
            return_obj.associated_campaigns = AssociatedCampaigns.from_obj(obj.Associated_Campaigns)
            return_obj.associated_actors = AssociatedActors.from_obj(obj.Associated_Actors)
            return_obj.handling = Marking.from_obj(obj.Handling)
            return_obj.confidence = Confidence.from_obj(obj.Confidence)
            return_obj.information_source = InformationSource.from_obj(obj.Information_Source)
            return_obj.related_packages = RelatedPackageRefs.from_obj(obj.Related_Packages)

        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None

        if not return_obj:
            return_obj = cls()

        super(ThreatActor, cls).from_dict(dict_repr, return_obj=return_obj)

        get = dict_repr.get
        return_obj.identity = Identity.from_dict(get('identity'))
        return_obj.types = _Types.from_dict(get('types'))
        return_obj.motivations = _Motivations.from_dict(get('motivations'))
        return_obj.sophistications = _Sophistications.from_dict(get('sophistications'))
        return_obj.intended_effects = _IntendedEffects.from_dict(get('intended_effects'))
        return_obj.planning_and_operational_supports = \
            _PlanningAndOperationalSupports.from_dict(get('planning_and_operational_supports'))
        return_obj.observed_ttps = ObservedTTPs.from_dict(get('observed_ttps'))
        return_obj.associated_campaigns = AssociatedCampaigns.from_dict(get('associated_campaigns'))
        return_obj.associated_actors = AssociatedActors.from_dict(get('associated_actors'))
        return_obj.handling = Marking.from_dict(get('handling'))
        return_obj.confidence = Confidence.from_dict(get('confidence'))
        return_obj.related_packages = RelatedPackageRefs.from_dict(get('related_packages'))

        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None

        if not return_obj:
            return_obj = cls()

        super(Incident, cls).from_dict(dict_repr, return_obj=return_obj)

        get = dict_repr.get
        return_obj.time = Time.from_dict(get('time'))
        return_obj.victims = _Victims.from_dict(get('victims'))
        return_obj.categories = IncidentCategories.from_dict(get('categories'))
        return_obj.attributed_threat_actors = AttributedThreatActors.from_dict(get('attributed_threat_actors'))
        return_obj.related_indicators = RelatedIndicators.from_dict(get('related_indicators'))
        return_obj.related_observables = RelatedObservables.from_dict(get('related_observables'))
        return_obj.related_incidents = RelatedIncidents.from_dict(get('related_incidents'))
        return_obj.intended_effects = _IntendedEffects.from_list(get('intended_effects'))
        return_obj.leveraged_ttps = LeveragedTTPs.from_dict(get('leveraged_ttps'))
        return_obj.affected_assets = AffectedAssets.from_dict(get('affected_assets'))
        return_obj.discovery_methods = DiscoveryMethods.from_dict(get('discovery_methods'))
        return_obj.reporter = InformationSource.from_dict(get('reporter'))
        return_obj.responders = _InformationSources.from_dict(get('responders'))
        return_obj.coordinators = _InformationSources.from_dict(get('coordinators'))
        return_obj.external_ids = _ExternalIDs.from_dict(get('external_ids'))
        return_obj.impact_assessment = ImpactAssessment.from_dict(get('impact_assessment'))
        return_obj.security_compromise = VocabString.from_dict(get('security_compromise'))
        return_obj.confidence = Confidence.from_dict(get('confidence'))
        return_obj.coa_taken = _COAsTaken.from_dict(get('coa_taken'))
        return_obj.coa_requested = _COAsRequested.from_dict(get('coa_requested'))
        return_obj.status = VocabString.from_dict(get('status'))
        return_obj.history = History.from_dict(get('history'))
        return_obj.related_packages = RelatedPackageRefs.from_dict(get('related_packages'))

        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.id_ = dict_repr.get('id')
        return_obj.idref = dict_repr.get('idref')
        return_obj.timestamp = dict_repr.get('timestamp')
        return_obj.version = dict_repr.get('version', cls._version)
        return_obj.title = dict_repr.get('title')
        return_obj.description = StructuredText.from_dict(dict_repr.get('description'))
        return_obj.short_description = StructuredText.from_dict(dict_repr.get('short_description'))
        return_obj.time = Time.from_dict(dict_repr.get('time'))
        return_obj.victims = [Identity.from_dict(x) for x in dict_repr.get('victims', [])]
        return_obj.categories = [IncidentCategory.from_dict(x) for x in dict_repr.get('categories', [])]
        return_obj.attributed_threat_actors = AttributedThreatActors.from_dict(dict_repr.get('attributed_threat_actors'))
        return_obj.related_indicators = RelatedIndicators.from_dict(dict_repr.get('related_indicators'))
        return_obj.related_observables = RelatedObservables.from_dict(dict_repr.get('related_observables'))
        return_obj.related_incidents = RelatedIncidents.from_dict(dict_repr.get('related_incidents'))
        return_obj.intended_effects = [Statement.from_dict(x) for x in dict_repr.get('intended_effects', [])]
        return_obj.leveraged_ttps = LeveragedTTPs.from_dict(dict_repr.get('leveraged_ttps'))
        return_obj.affected_assets = [AffectedAsset.from_dict(x) for x in dict_repr.get('affected_assets', [])]
        return_obj.discovery_methdos = [DiscoveryMethod.from_dict(x) for x in dict_repr.get('discovery_methods', [])]
        return_obj.reporter = InformationSource.from_dict(dict_repr.get('reporter'))
        return_obj.responders = [InformationSource.from_dict(x) for x in dict_repr.get('responders', [])]
        return_obj.coordinators = [InformationSource.from_dict(x) for x in dict_repr.get('coordinators', [])]
        return_obj.external_ids = [ExternalID.from_dict(x) for x in dict_repr.get('external_ids', [])]
        return_obj.impact_assessment = ImpactAssessment.from_dict(dict_repr.get('impact_assessment'))
        return_obj.information_source = InformationSource.from_dict(dict_repr.get('information_source'))
        return_obj.security_compromise = SecurityCompromise.from_dict(dict_repr.get('security_compromise'))
        return_obj.confidence = Confidence.from_dict(dict_repr.get('confidence'))
        return_obj.coa_taken = [COATaken.from_dict(x) for x in dict_repr.get('coa_taken', [])]
        
        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None

        if not return_obj:
            return_obj = cls()

        super(Campaign, cls).from_obj(obj, return_obj=return_obj)

        if isinstance(obj, cls._binding_class):
            return_obj.names = Names.from_obj(obj.Names)
            return_obj.intended_effects = \
                _IntendedEffects.from_obj(obj.Intended_Effect)
            return_obj.status = VocabString.from_obj(obj.Status)
            return_obj.related_ttps = RelatedTTPs.from_obj(obj.Related_TTPs)
            return_obj.related_incidents = \
                RelatedIncidents.from_obj(obj.Related_Incidents)
            return_obj.related_indicators = \
                RelatedIndicators.from_obj(obj.Related_Indicators)
            return_obj.attribution = _AttributionList.from_obj(obj.Attribution)
            return_obj.associated_campaigns = \
                AssociatedCampaigns.from_obj(obj.Associated_Campaigns)
            return_obj.confidence = Confidence.from_obj(obj.Confidence)
            return_obj.activity = _Activities.from_obj(obj.Activity)
            return_obj.related_packages = \
                RelatedPackageRefs.from_obj(obj.Related_Packages)

        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.id_ = obj.get_id()
        return_obj.idref = obj.get_idref()
        return_obj.timestamp = obj.get_timestamp()
        if isinstance(obj, cls._binding_class): # ThreatActorType properties
            return_obj.version = obj.get_version() if obj.get_version() else cls._version
            return_obj.title = obj.get_Title()
            return_obj.description = StructuredText.from_obj(obj.get_Description())
            return_obj.short_description = StructuredText.from_obj(obj.get_Short_Description())
            return_obj.identity = Identity.from_obj(obj.get_Identity())
            return_obj.types = [Statement.from_obj(x) for x in obj.get_Type()]
            return_obj.motivations = [Statement.from_obj(x) for x in obj.get_Motivation()]
            return_obj.sophistications = [Statement.from_obj(x) for x in obj.get_Sophistication()]
            return_obj.intended_effects = [Statement.from_obj(x) for x in obj.get_Intended_Effect()]
            return_obj.planning_and_operational_supports = [Statement.from_obj(x) for x in obj.get_Planning_And_Operational_Support()]
            return_obj.observed_ttps = ObservedTTPs.from_obj(obj.get_Observed_TTPs())
            return_obj.associated_campaigns = AssociatedCampaigns.from_obj(obj.get_Associated_Campaigns())
            return_obj.associated_actors = AssociatedActors.from_obj(obj.get_Associated_Actors())
            return_obj.handling = Marking.from_obj(obj.get_Handling())
            return_obj.confidence = Confidence.from_obj(obj.get_Confidence())
            return_obj.information_source = InformationSource.from_obj(obj.get_Information_Source())
            return_obj.related_packages = RelatedPackageRefs.from_obj(obj.get_Related_Packages())

        return return_obj

    def from_obj(cls, obj, return_obj=None):        
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        super(Indicator, cls).from_obj(obj, return_obj=return_obj)

        if isinstance(obj, cls._binding_class):
            return_obj.negate = obj.negate
            return_obj.producer = InformationSource.from_obj(obj.Producer)
            return_obj.confidence = Confidence.from_obj(obj.Confidence)
            return_obj.sightings = Sightings.from_obj(obj.Sightings)
            return_obj.composite_indicator_expression = CompositeIndicatorExpression.from_obj(obj.Composite_Indicator_Expression)
            return_obj.kill_chain_phases = KillChainPhasesReference.from_obj(obj.Kill_Chain_Phases)
            return_obj.related_indicators = RelatedIndicators.from_obj(obj.Related_Indicators)
            return_obj.likely_impact = Statement.from_obj(obj.Likely_Impact)
            return_obj.indicator_types = IndicatorTypes.from_obj(obj.Type)
            return_obj.test_mechanisms = TestMechanisms.from_obj(obj.Test_Mechanisms)
            return_obj.suggested_coas = SuggestedCOAs.from_obj(obj.Suggested_COAs)
            return_obj.alternative_id = obj.Alternative_ID
            return_obj.indicated_ttps = _IndicatedTTPs.from_obj(obj.Indicated_TTP)
            return_obj.valid_time_positions = _ValidTimePositions.from_obj(obj.Valid_Time_Position)
            return_obj.observable = Observable.from_obj(obj.Observable)
            return_obj.related_campaigns = RelatedCampaignRefs.from_obj(obj.Related_Campaigns)
            return_obj.related_packages = RelatedPackageRefs.from_obj(obj.Related_Packages)
            
        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None

        if not return_obj:
            return_obj = cls()

        super(Campaign, cls).from_dict(dict_repr, return_obj=return_obj)

        get = dict_repr.get  # PEP 8 line lengths
        return_obj.names = Names.from_dict(get('names'))
        return_obj.intended_effects = \
            _IntendedEffects.from_dict(get('intended_effects'))
        return_obj.status = VocabString.from_dict(get('status'))
        return_obj.related_ttps = \
            RelatedTTPs.from_dict(get('related_ttps'))
        return_obj.related_incidents = \
            RelatedIncidents.from_dict(get('related_incidents'))
        return_obj.related_indicators = \
            RelatedIndicators.from_dict(get('related_indicators'))
        return_obj.attribution = _AttributionList.from_list(get('attribution'))
        return_obj.associated_campaigns = \
            AssociatedCampaigns.from_dict(get('associated_campaigns'))
        return_obj.confidence = \
            Confidence.from_dict(get('confidence'))
        return_obj.activity = _Activities.from_dict(get('activity'))
        return_obj.related_packages = \
            RelatedPackageRefs.from_dict(get('related_packages'))

        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None

        if not return_obj:
            return_obj = cls()

        return_obj.id_ = dict_repr.get('id')
        return_obj.idref = dict_repr.get('idref')
        return_obj.timestamp = dict_repr.get('timestamp')
        return_obj.version = dict_repr.get('version')
        return_obj.title = dict_repr.get('title')
        return_obj.description = StructuredText.from_dict(dict_repr.get('description'))
        return_obj.short_description = StructuredText.from_dict(dict_repr.get('short_description'))
        return_obj.identity = Identity.from_dict(dict_repr.get('identity'))
        return_obj.types = [Statement.from_dict(x) for x in dict_repr.get('types', [])]
        return_obj.motivations = [Statement.from_dict(x) for x in dict_repr.get('motivations', [])]
        return_obj.sophistications = [Statement.from_dict(x) for x in dict_repr.get('sophistications', [])]
        return_obj.intended_effects = [Statement.from_dict(x) for x in dict_repr.get('intended_effects', [])]
        return_obj.planning_and_operational_supports = [Statement.from_dict(x)
                for x in dict_repr.get('planning_and_operational_supports', [])]
        return_obj.observed_ttps = ObservedTTPs.from_dict(dict_repr.get('observed_ttps'))
        return_obj.associated_campaigns = AssociatedCampaigns.from_dict(dict_repr.get('associated_campaigns'))
        return_obj.associated_actors = AssociatedActors.from_dict(dict_repr.get('associated_actors'))
        return_obj.handling = Marking.from_dict(dict_repr.get('handling'))
        return_obj.confidence = Confidence.from_dict(dict_repr.get('confidence'))
        return_obj.information_source = InformationSource.from_dict(dict_repr.get('information_source'))
        return_obj.related_packages = RelatedPackageRefs.from_dict(dict_repr.get('related_packages'))

        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None
        if not return_obj:
            return_obj = cls()

        super(Indicator, cls).from_dict(dict_repr, return_obj=return_obj)

        get = dict_repr.get
        return_obj.negate    = get('negate')
        return_obj.alternative_id = get('alternative_id')
        return_obj.indicated_ttps = _IndicatedTTPs.from_dict(get('indicated_ttps'))
        return_obj.test_mechanisms = TestMechanisms.from_list(get('test_mechanisms'))
        return_obj.suggested_coas = SuggestedCOAs.from_dict(get('suggested_coas'))
        return_obj.sightings = Sightings.from_dict(get('sightings'))
        return_obj.composite_indicator_expression = CompositeIndicatorExpression.from_dict(get('composite_indicator_expression'))
        return_obj.kill_chain_phases = KillChainPhasesReference.from_dict(get('kill_chain_phases'))
        return_obj.related_indicators = RelatedIndicators.from_dict(get('related_indicators'))
        return_obj.likely_impact = Statement.from_dict(get('likely_impact'))
        return_obj.indicator_types = IndicatorTypes.from_list(get('indicator_types'))
        return_obj.confidence = Confidence.from_dict(get('confidence'))
        return_obj.valid_time_positions = _ValidTimePositions.from_dict(get('valid_time_positions'))
        return_obj.observable = Observable.from_dict(get('observable'))
        return_obj.producer = InformationSource.from_dict(get('producer'))
        return_obj.related_campaigns = RelatedCampaignRefs.from_dict(get('related_campaigns'))
        return_obj.related_packages = RelatedPackageRefs.from_dict(get('related_packages'))

        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.description = StructuredText.from_obj(obj.get_Description())
        return_obj.short_description = StructuredText.from_obj(obj.get_Short_Description())
        return_obj.applicability_confidence = Confidence.from_obj(obj.get_Applicability_Confidence())
        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.descriptions = StructuredTextList.from_obj(obj.Description)
        return_obj.short_descriptions = StructuredTextList.from_obj(obj.Short_Description)
        return_obj.applicability_confidence = Confidence.from_obj(obj.Applicability_Confidence)
        return return_obj

    def from_dict(cls, dict_repr, return_obj=None):
        if not dict_repr:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.description = StructuredText.from_dict(dict_repr.get('description'))
        return_obj.short_description = StructuredText.from_dict(dict_repr.get('short_description'))
        return_obj.applicability_confidence = Confidence.from_dict(dict_repr.get('applicability_confidence'))
        
        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.id_ = obj.get_id()
        return_obj.idref = obj.get_idref()
        return_obj.timestamp = obj.get_timestamp()
        
        if isinstance(obj, cls._binding_class):
            return_obj.version = obj.get_version() or cls._version
            return_obj.title = obj.get_Title()
            return_obj.description = StructuredText.from_obj(obj.get_Description())
            return_obj.short_description = StructuredText.from_obj(obj.get_Short_Description())
            return_obj.time = Time.from_obj(obj.get_Time())
    
            if obj.get_Victim():
                return_obj.victims = [Identity.from_obj(x) for x in obj.get_Victim()]
            if obj.get_Categories():
                return_obj.categories = [IncidentCategory.from_obj(x) for x in obj.get_Categories().get_Category()]
            if obj.get_Intended_Effect():
                return_obj.intended_effects = [Statement.from_obj(x) for x in obj.get_Intended_Effect()]
            if obj.get_Affected_Assets():
                return_obj.affected_assets = [AffectedAsset.from_obj(x) for x in obj.get_Affected_Assets().get_Affected_Asset()]
            if obj.get_Discovery_Method():
                return_obj.discovery_methods = [DiscoveryMethod.from_obj(x) for x in obj.get_Discovery_Method()]
            if obj.get_Reporter():
                return_obj.reporter = InformationSource.from_obj(obj.get_Reporter())
            if obj.get_Responder():
                return_obj.responders = [InformationSource.from_obj(x) for x in obj.get_Responder()]
            if obj.get_Coordinator():
                return_obj.coordinators = [InformationSource.from_obj(x) for x in obj.get_Coordinator()]
            if obj.get_External_ID():
                return_obj.external_ids = [ExternalID.from_obj(x) for x in obj.get_External_ID()]
            if obj.get_Impact_Assessment():
                return_obj.impact_assessment = ImpactAssessment.from_obj(obj.get_Impact_Assessment())
            if obj.get_Information_Source():
                return_obj.information_source = InformationSource.from_obj(obj.get_Information_Source())
            if obj.get_Security_Compromise():
                return_obj.security_compromise = SecurityCompromise.from_obj(obj.get_Security_Compromise())
            
            return_obj.coa_taken = [COATaken.from_obj(x) for x in obj.get_COA_Taken()]
            return_obj.confidence = Confidence.from_obj(obj.get_Confidence())
            return_obj.attributed_threat_actors = AttributedThreatActors.from_obj(obj.get_Attributed_Threat_Actors())
            return_obj.related_indicators = RelatedIndicators.from_obj(obj.get_Related_Indicators())
            return_obj.related_observables = RelatedObservables.from_obj(obj.get_Related_Observables())
            return_obj.leveraged_ttps = LeveragedTTPs.from_obj(obj.get_Leveraged_TTPs())
            return_obj.related_incidents = RelatedIncidents.from_obj(obj.get_Related_Incidents())
            return_obj.status = VocabString.from_obj(obj.get_Status())
            return_obj.handling = Marking.from_obj(obj.get_Handling())
            return_obj.history = History.from_obj(obj.get_History())
            
        return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None
        if not return_obj:
            return_obj = cls()

        return_obj.id_ = obj.id
        return_obj.idref = obj.idref
        return_obj.timestamp = obj.timestamp
        
        if isinstance(obj, cls._binding_class):
            return_obj.version = obj.version
            return_obj.title = obj.Title
            return_obj.description = StructuredText.from_obj(obj.Description)
            return_obj.short_description = StructuredText.from_obj(obj.Short_Description)
            return_obj.time = Time.from_obj(obj.Time)
    
            if obj.Victim:
                return_obj.victims = [Identity.from_obj(x) for x in obj.Victim]
            if obj.Categories:
                return_obj.categories = [IncidentCategory.from_obj(x) for x in obj.Categories.Category]
            if obj.Intended_Effect:
                return_obj.intended_effects = [Statement.from_obj(x) for x in obj.Intended_Effect]
            if obj.Affected_Assets:
                return_obj.affected_assets = [AffectedAsset.from_obj(x) for x in obj.Affected_Assets.Affected_Asset]
            if obj.Discovery_Method:
                return_obj.discovery_methods = [DiscoveryMethod.from_obj(x) for x in obj.Discovery_Method]
            if obj.Reporter:
                return_obj.reporter = InformationSource.from_obj(obj.Reporter)
            if obj.Responder:
                return_obj.responders = [InformationSource.from_obj(x) for x in obj.Responder]
            if obj.Coordinator:
                return_obj.coordinators = [InformationSource.from_obj(x) for x in obj.Coordinator]
            if obj.External_ID:
                return_obj.external_ids = [ExternalID.from_obj(x) for x in obj.External_ID]
            if obj.Impact_Assessment:
                return_obj.impact_assessment = ImpactAssessment.from_obj(obj.Impact_Assessment)
            if obj.Information_Source:
                return_obj.information_source = InformationSource.from_obj(obj.Information_Source)
            if obj.Security_Compromise:
                return_obj.security_compromise = SecurityCompromise.from_obj(obj.Security_Compromise)
            
            return_obj.coa_taken = [COATaken.from_obj(x) for x in obj.COA_Taken]
            return_obj.confidence = Confidence.from_obj(obj.Confidence)
            return_obj.attributed_threat_actors = AttributedThreatActors.from_obj(obj.Attributed_Threat_Actors)
            return_obj.related_indicators = RelatedIndicators.from_obj(obj.Related_Indicators)
            return_obj.related_observables = RelatedObservables.from_obj(obj.Related_Observables)
            return_obj.leveraged_ttps = LeveragedTTPs.from_obj(obj.Leveraged_TTPs)
            return_obj.related_incidents = RelatedIncidents.from_obj(obj.Related_Incidents)
            return_obj.status = VocabString.from_obj(obj.Status)
            return_obj.handling = Marking.from_obj(obj.Handling)
            return_obj.history = History.from_obj(obj.History)
            
        return return_obj

    def from_dict(cls, d, return_obj=None):
        if not d:
            return None
        if return_obj is None:
            return_obj = cls()

        return_obj.timestamp = d.get('timestamp')
        return_obj.timestamp_precision = d.get('timestamp_precision')
        return_obj.source = InformationSource.from_dict(d.get('source'))
        return_obj.reference = d.get('reference')
        return_obj.confidence = Confidence.from_dict(d.get('confidence'))
        return_obj.description = StructuredText.from_dict(d.get('description'))
        return_obj.related_observables = RelatedObservables.from_dict(d.get('related_observables'))
        return return_obj

 def from_obj(cls, obj, return_obj=None):
     if not obj:
         return None
     if return_obj is None:
         return_obj = cls()
     
     return_obj.timestamp = obj.get_timestamp()
     return_obj.timestamp_precision = obj.get_timestamp_precision()
     return_obj.source = InformationSource.from_obj(obj.get_Source())
     return_obj.refernce = obj.get_Reference()
     return_obj.confidence = Confidence.from_obj(obj.get_Confidence())
     return_obj.description = StructuredText.from_obj(obj.get_Description())
     return_obj.related_observables = RelatedObservables.from_obj(obj.get_Related_Observables())
     return return_obj

    def from_obj(cls, obj, return_obj=None):
        if not obj:
            return None

        if return_obj is None:
            return_obj = cls()
        
        return_obj.timestamp = obj.timestamp
        return_obj.timestamp_precision = obj.timestamp_precision
        return_obj.source = InformationSource.from_obj(obj.Source)
        return_obj.reference = obj.Reference
        return_obj.confidence = Confidence.from_obj(obj.Confidence)
        return_obj.descriptions = StructuredTextList.from_obj(obj.Description)
        return_obj.related_observables = RelatedObservables.from_obj(obj.Related_Observables)
        return return_obj