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 main():

    campaign = Campaign(title="Campaign against ICS")
    ttp = TTP(title="DrownedRat")

    alpha_report = Report()
    alpha_report.header = Header()
    alpha_report.header.title = "Report on Adversary Alpha's Campaign against the Industrial Control Sector"
    alpha_report.header.descriptions = "Adversary Alpha has a campaign against the ICS sector!"
    alpha_report.header.intents = "Campaign Characterization"
    alpha_report.add_campaign(Campaign(idref=campaign._id))

    rat_report = Report()
    rat_report.header = Header()
    rat_report.header.title = "Indicators for Malware DrownedRat"
    rat_report.header.intents = "Indicators - Malware Artifacts"
    rat_report.add_ttp(TTP(idref=ttp._id))

    wrapper = STIXPackage()
    info_src = InformationSource()
    info_src.identity = Identity(name="Government Sharing Program - GSP")
    wrapper.stix_header = STIXHeader(information_source=info_src)
    wrapper.add_report(alpha_report)
    wrapper.add_report(rat_report)
    wrapper.add_campaign(campaign)
    wrapper.add_ttp(ttp)


    print wrapper.to_xml()

def main():
    alpha_package = STIXPackage()
    alpha_package.stix_header = STIXHeader()
    alpha_package.stix_header.title = "Report on Adversary Alpha's Campaign against the Industrial Control Sector"
    alpha_package.stix_header.package_intents = "Campaign Characterization"
    alpha_package.stix_header.handling = Marking()

    alpha_marking = MarkingSpecification()
    alpha_marking.controlled_structure = "../../../../node()"
    alpha_tlp_marking = TLPMarkingStructure()
    alpha_tlp_marking.color = "AMBER"
    alpha_marking.marking_structures.append(alpha_tlp_marking)
    alpha_package.stix_header.handling.add_marking(alpha_marking)

    rat_package = STIXPackage()
    rat_package.stix_header = STIXHeader()
    rat_package.stix_header.title = "Indicators for Malware DrownedRat"
    rat_package.stix_header.package_intents = "Indicators - Malware Artifacts"
    rat_package.stix_header.handling = Marking()

    rat_marking = MarkingSpecification()
    rat_marking.controlled_structure = "../../../../node()"
    rat_tlp_marking = TLPMarkingStructure()
    rat_tlp_marking.color = "RED"
    alpha_marking.marking_structures.append(rat_tlp_marking)
    rat_package.stix_header.handling.add_marking(rat_marking)

    stix_package = STIXPackage()
    info_src = InformationSource()
    info_src.identity = Identity(name="Government Sharing Program - GSP")
    stix_package.stix_header = STIXHeader(information_source=info_src)
    stix_package.related_packages.append(alpha_package)
    stix_package.related_packages.append(rat_package)

    print stix_package.to_xml()

    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 add_analyst_item(analyst_item, incident):
    insrc = InformationSource()
    analyst_identity = CIQIdentity3_0Instance()
    identity_spec = STIXCIQIdentity3_0()
    analyst_identity.specification = identity_spec
    if analyst_item:
        partyName = PartyName()
        partyName.add_name_line(analyst_item)
        identity_spec.party_name = partyName
    insrc.identity = analyst_identity
    incident.reporter = insrc

    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()

        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_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()

        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 set_received_time(self, received_time):
        """Sets the received time for this :class:`Indicator`.

        This is the same as calling
        ``indicator.producer.time.produced_time = produced_time``.

        The `received_time` parameter must be an instance of ``str``,
        ``datetime.datetime``, or ``cybox.common.DateTimeWithPrecision``.

        Args:
            received_time: An instance of ``str``,
                ``datetime.datetime``, or ``cybox.common.DateTimeWithPrecision``.

        Note:
            If `received_time` is a ``str`` or ``datetime.datetime`` instance
            an attempt will be made to convert it into an instance of
            ``cybox.common.DateTimeWithPrecision``.

        """
        if not self.producer:
            self.producer = InformationSource()

        if not self.producer.time:
            self.producer.time = Time()

        self.producer.time.received_time = received_time

    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_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): # TTPType 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.behavior = Behavior.from_obj(obj.Behavior)
            return_obj.related_ttps = RelatedTTPs.from_obj(obj.Related_TTPs)
            return_obj.exploit_targets = ExploitTargets.from_obj(obj.Exploit_Targets)
            return_obj.information_source = InformationSource.from_obj(obj.Information_Source)
            return_obj.resources = Resource.from_obj(obj.Resources)
            return_obj.victim_targeting = VictimTargeting.from_obj(obj.Victim_Targeting)
            return_obj.handling = Marking.from_obj(obj.Handling)

            if obj.Intended_Effect:
                return_obj.intended_effects = [Statement.from_obj(x) for x in obj.Intended_Effect]

        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() # not yet implemented

        if isinstance(obj, cls._binding_class): # TTPType properties
            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.information_source = InformationSource.from_obj(obj.get_Information_Source())
            return_obj.handling = Marking.from_obj(obj.get_Handling())
            return_obj.potential_coas = PotentialCOAs.from_obj(obj.get_Potential_COAs())
            return_obj.related_exploit_targets = RelatedExploitTargets.from_obj(obj.get_Related_Exploit_Targets())
            return_obj.vulnerabilities = [Vulnerability.from_obj(x) for x in obj.get_Vulnerability()]
            return_obj.weakness = [Weakness.from_obj(x) for x in obj.get_Weakness()]
            return_obj.configuration = [Configuration.from_obj(x) for x in obj.get_Configuration()]
            return_obj.related_packages = RelatedPackageRefs.from_obj(obj.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.stage = VocabString.from_dict(dict_repr.get('stage'))
        return_obj.type_ = VocabString.from_dict(dict_repr.get('type'))
        return_obj.description = StructuredText.from_dict(dict_repr.get('description'))
        return_obj.short_description = StructuredText.from_dict(dict_repr.get('short_description'))
        return_obj.objective = Objective.from_dict(dict_repr.get('objective'))
        return_obj.parameter_observables = \
                Observables.from_dict(dict_repr.get('parameter_observables'))
        return_obj.impact = Statement.from_dict(dict_repr.get('impact'))
        return_obj.cost = Statement.from_dict(dict_repr.get('cost'))
        return_obj.efficacy = Statement.from_dict(dict_repr.get('efficacy'))
        return_obj.information_source = InformationSource.from_dict(dict_repr.get('information_source'))
        return_obj.handling = Marking.from_dict(dict_repr.get('handling'))
        return_obj.related_coas = \
                RelatedCOAs.from_dict(dict_repr.get('related_coas'))
        return_obj.related_packages = \
                RelatedPackageRefs.from_dict(dict_repr.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.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_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()
     
     return_obj.id_      = dict_repr.get('id')
     return_obj.title    = dict_repr.get('title')
     observable_dict     = dict_repr.get('observable')
     producer_dict       = dict_repr.get('producer')
     description_dict    = dict_repr.get('description')
     indicator_type_dict = dict_repr.get('indicator_type')
     
     if observable_dict:
         return_obj.add_observable(Observable.from_dict(observable_dict))
         
     if producer_dict:
         return_obj.producer = InformationSource.from_dict(producer_dict)
     
     if description_dict:
         return_obj.description = StructuredText.from_dict(description_dict)
     
     if indicator_type_dict:
         return_obj.indicator_type = IndicatorType.from_dict(indicator_type_dict)
     
     return return_obj

    def from_obj(cls, obj, return_obj=None):
        from stix.common import StructuredTextList, InformationSource
        from stix.data_marking import Marking

        if not return_obj:
            raise ValueError("Must provide a return_obj argument")

        if not obj:
            raise ValueError("Must provide an obj argument")

        return_obj.id_ = obj.id
        return_obj.idref = obj.idref
        return_obj.timestamp = obj.timestamp

        # These may not be found on the input obj if it isn't a full
        # type definition (e.g., used as a reference)
        return_obj.version = getattr(obj, 'version', None)
        return_obj.title = getattr(obj, 'Title', None)
        return_obj.descriptions = \
            StructuredTextList.from_obj(getattr(obj, 'Description', None))
        return_obj.short_descriptions = \
            StructuredTextList.from_obj(getattr(obj, 'Short_Description', None))
        return_obj.information_source = \
            InformationSource.from_obj(getattr(obj, 'Information_Source', None))
        return_obj.handling = \
            Marking.from_obj(getattr(obj, 'Handling', None))

        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): # CourseOfActionType properties
            return_obj.version = obj.version
            return_obj.title = obj.Title
            return_obj.stage = VocabString.from_obj(obj.Stage)
            return_obj.type_ = VocabString.from_obj(obj.Type)
            return_obj.description = StructuredText.from_obj(obj.Description)
            return_obj.short_description = StructuredText.from_obj(obj.Short_Description)
            return_obj.objective = Objective.from_obj(obj.Objective)
            return_obj.parameter_observables = \
                    Observables.from_obj(obj.Parameter_Observables)
            return_obj.impact = Statement.from_obj(obj.Impact)
            return_obj.cost = Statement.from_obj(obj.Cost)
            return_obj.efficacy = Statement.from_obj(obj.Efficacy)
            return_obj.information_source = InformationSource.from_obj(obj.Information_Source)
            return_obj.handling = Marking.from_obj(obj.Handling)
            return_obj.related_coas = \
                    RelatedCOAs.from_obj(obj.Related_COAs)
            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.package_intent = obj.get_PackageIntent()
     return_obj.description = StructuredText.from_obj(obj.get_Description())
     return_obj.information_source = InformationSource.from_obj(obj.get_InformationSource())
     
     return return_obj