Struct StepModel 

pub struct StepModel {

    pub action_arena: Arena<Action>,
    pub action_assignment_arena: Arena<ActionAssignment>,
    pub action_directive_arena: Arena<ActionDirective>,
    pub action_method_arena: Arena<ActionMethod>,
    pub action_method_relationship_arena: Arena<ActionMethodRelationship>,
    pub action_property_arena: Arena<ActionProperty>,
    pub action_relationship_arena: Arena<ActionRelationship>,
    pub action_request_assignment_arena: Arena<ActionRequestAssignment>,
    pub action_request_solution_arena: Arena<ActionRequestSolution>,
    pub action_resource_arena: Arena<ActionResource>,
    pub action_resource_relationship_arena: Arena<ActionResourceRelationship>,
    pub action_resource_requirement_arena: Arena<ActionResourceRequirement>,
    pub action_resource_type_arena: Arena<ActionResourceType>,
    pub address_arena: Arena<Address>,
    pub advanced_brep_shape_representation_arena: Arena<AdvancedBrepShapeRepresentation>,
    pub advanced_face_arena: Arena<AdvancedFace>,
    pub all_around_shape_aspect_arena: Arena<AllAroundShapeAspect>,
    pub angular_location_arena: Arena<AngularLocation>,
    pub angular_size_arena: Arena<AngularSize>,
    pub angularity_tolerance_arena: Arena<AngularityTolerance>,
    pub annotation_curve_occurrence_arena: Arena<AnnotationCurveOccurrence>,
    pub annotation_fill_area_occurrence_arena: Arena<AnnotationFillAreaOccurrence>,
    pub annotation_occurrence_arena: Arena<AnnotationOccurrence>,
    pub annotation_occurrence_associativity_arena: Arena<AnnotationOccurrenceAssociativity>,
    pub annotation_occurrence_relationship_arena: Arena<AnnotationOccurrenceRelationship>,
    pub annotation_placeholder_leader_line_arena: Arena<AnnotationPlaceholderLeaderLine>,
    pub annotation_placeholder_occurrence_arena: Arena<AnnotationPlaceholderOccurrence>,
    pub annotation_placeholder_occurrence_with_leader_line_arena: Arena<AnnotationPlaceholderOccurrenceWithLeaderLine>,
    pub annotation_plane_arena: Arena<AnnotationPlane>,
    pub annotation_symbol_arena: Arena<AnnotationSymbol>,
    pub annotation_symbol_occurrence_arena: Arena<AnnotationSymbolOccurrence>,
    pub annotation_text_arena: Arena<AnnotationText>,
    pub annotation_text_character_arena: Arena<AnnotationTextCharacter>,
    pub annotation_text_occurrence_arena: Arena<AnnotationTextOccurrence>,
    pub annotation_to_annotation_leader_line_arena: Arena<AnnotationToAnnotationLeaderLine>,
    pub annotation_to_model_leader_line_arena: Arena<AnnotationToModelLeaderLine>,
    pub apll_point_arena: Arena<ApllPoint>,
    pub apll_point_with_surface_arena: Arena<ApllPointWithSurface>,
    pub application_context_arena: Arena<ApplicationContext>,
    pub application_context_element_arena: Arena<ApplicationContextElement>,
    pub application_protocol_definition_arena: Arena<ApplicationProtocolDefinition>,
    pub applied_approval_assignment_arena: Arena<AppliedApprovalAssignment>,
    pub applied_date_and_time_assignment_arena: Arena<AppliedDateAndTimeAssignment>,
    pub applied_document_reference_arena: Arena<AppliedDocumentReference>,
    pub applied_external_identification_assignment_arena: Arena<AppliedExternalIdentificationAssignment>,
    pub applied_group_assignment_arena: Arena<AppliedGroupAssignment>,
    pub applied_person_and_organization_assignment_arena: Arena<AppliedPersonAndOrganizationAssignment>,
    pub applied_presented_item_arena: Arena<AppliedPresentedItem>,
    pub applied_security_classification_assignment_arena: Arena<AppliedSecurityClassificationAssignment>,
    pub approval_arena: Arena<Approval>,
    pub approval_assignment_arena: Arena<ApprovalAssignment>,
    pub approval_date_time_arena: Arena<ApprovalDateTime>,
    pub approval_person_organization_arena: Arena<ApprovalPersonOrganization>,
    pub approval_role_arena: Arena<ApprovalRole>,
    pub approval_status_arena: Arena<ApprovalStatus>,
    pub approximation_tolerance_arena: Arena<ApproximationTolerance>,
    pub approximation_tolerance_deviation_arena: Arena<ApproximationToleranceDeviation>,
    pub approximation_tolerance_parameter_arena: Arena<ApproximationToleranceParameter>,
    pub area_in_set_arena: Arena<AreaInSet>,
    pub area_unit_arena: Arena<AreaUnit>,
    pub ascribable_state_arena: Arena<AscribableState>,
    pub ascribable_state_relationship_arena: Arena<AscribableStateRelationship>,
    pub assembly_component_usage_arena: Arena<AssemblyComponentUsage>,
    pub auxiliary_leader_line_arena: Arena<AuxiliaryLeaderLine>,
    pub axis1_placement_arena: Arena<Axis1Placement>,
    pub axis2_placement2d_arena: Arena<Axis2Placement2d>,
    pub axis2_placement3d_arena: Arena<Axis2Placement3d>,
    pub b_spline_curve_arena: Arena<BSplineCurve>,
    pub b_spline_curve_with_knots_arena: Arena<BSplineCurveWithKnots>,
    pub b_spline_surface_arena: Arena<BSplineSurface>,
    pub b_spline_surface_with_knots_arena: Arena<BSplineSurfaceWithKnots>,
    pub bezier_curve_arena: Arena<BezierCurve>,
    pub bezier_surface_arena: Arena<BezierSurface>,
    pub bounded_curve_arena: Arena<BoundedCurve>,
    pub bounded_pcurve_arena: Arena<BoundedPcurve>,
    pub bounded_surface_arena: Arena<BoundedSurface>,
    pub bounded_surface_curve_arena: Arena<BoundedSurfaceCurve>,
    pub brep_with_voids_arena: Arena<BrepWithVoids>,
    pub calendar_date_arena: Arena<CalendarDate>,
    pub camera_image_arena: Arena<CameraImage>,
    pub camera_image3d_with_scale_arena: Arena<CameraImage3dWithScale>,
    pub camera_model_arena: Arena<CameraModel>,
    pub camera_model_d3_arena: Arena<CameraModelD3>,
    pub camera_model_d3_multi_clipping_arena: Arena<CameraModelD3MultiClipping>,
    pub camera_model_d3_with_hlhsr_arena: Arena<CameraModelD3WithHlhsr>,
    pub camera_usage_arena: Arena<CameraUsage>,
    pub cartesian_point_arena: Arena<CartesianPoint>,
    pub cc_design_approval_arena: Arena<CcDesignApproval>,
    pub cc_design_date_and_time_assignment_arena: Arena<CcDesignDateAndTimeAssignment>,
    pub cc_design_person_and_organization_assignment_arena: Arena<CcDesignPersonAndOrganizationAssignment>,
    pub cc_design_security_classification_arena: Arena<CcDesignSecurityClassification>,
    pub centre_of_symmetry_arena: Arena<CentreOfSymmetry>,
    pub certification_arena: Arena<Certification>,
    pub certification_type_arena: Arena<CertificationType>,
    pub change_arena: Arena<Change>,
    pub change_request_arena: Arena<ChangeRequest>,
    pub character_glyph_style_outline_arena: Arena<CharacterGlyphStyleOutline>,
    pub character_glyph_style_stroke_arena: Arena<CharacterGlyphStyleStroke>,
    pub characterized_item_within_representation_arena: Arena<CharacterizedItemWithinRepresentation>,
    pub characterized_object_arena: Arena<CharacterizedObject>,
    pub characterized_representation_arena: Arena<CharacterizedRepresentation>,
    pub circle_arena: Arena<Circle>,
    pub circular_runout_tolerance_arena: Arena<CircularRunoutTolerance>,
    pub closed_shell_arena: Arena<ClosedShell>,
    pub coaxiality_tolerance_arena: Arena<CoaxialityTolerance>,
    pub colour_arena: Arena<Colour>,
    pub colour_rgb_arena: Arena<ColourRgb>,
    pub colour_specification_arena: Arena<ColourSpecification>,
    pub common_datum_arena: Arena<CommonDatum>,
    pub complex_triangulated_face_arena: Arena<ComplexTriangulatedFace>,
    pub complex_triangulated_surface_set_arena: Arena<ComplexTriangulatedSurfaceSet>,
    pub composite_curve_arena: Arena<CompositeCurve>,
    pub composite_curve_segment_arena: Arena<CompositeCurveSegment>,
    pub composite_group_shape_aspect_arena: Arena<CompositeGroupShapeAspect>,
    pub composite_shape_aspect_arena: Arena<CompositeShapeAspect>,
    pub composite_text_arena: Arena<CompositeText>,
    pub compound_representation_item_arena: Arena<CompoundRepresentationItem>,
    pub concentricity_tolerance_arena: Arena<ConcentricityTolerance>,
    pub configuration_design_arena: Arena<ConfigurationDesign>,
    pub configuration_effectivity_arena: Arena<ConfigurationEffectivity>,
    pub configuration_item_arena: Arena<ConfigurationItem>,
    pub conic_arena: Arena<Conic>,
    pub conical_surface_arena: Arena<ConicalSurface>,
    pub connected_face_set_arena: Arena<ConnectedFaceSet>,
    pub constructive_geometry_representation_arena: Arena<ConstructiveGeometryRepresentation>,
    pub constructive_geometry_representation_relationship_arena: Arena<ConstructiveGeometryRepresentationRelationship>,
    pub context_dependent_over_riding_styled_item_arena: Arena<ContextDependentOverRidingStyledItem>,
    pub context_dependent_shape_representation_arena: Arena<ContextDependentShapeRepresentation>,
    pub context_dependent_unit_arena: Arena<ContextDependentUnit>,
    pub continuous_shape_aspect_arena: Arena<ContinuousShapeAspect>,
    pub contract_arena: Arena<Contract>,
    pub contract_type_arena: Arena<ContractType>,
    pub conversion_based_unit_arena: Arena<ConversionBasedUnit>,
    pub coordinated_universal_time_offset_arena: Arena<CoordinatedUniversalTimeOffset>,
    pub coordinates_list_arena: Arena<CoordinatesList>,
    pub curve_arena: Arena<Curve>,
    pub curve_style_arena: Arena<CurveStyle>,
    pub curve_style_font_arena: Arena<CurveStyleFont>,
    pub curve_style_font_and_scaling_arena: Arena<CurveStyleFontAndScaling>,
    pub curve_style_font_pattern_arena: Arena<CurveStyleFontPattern>,
    pub curve_style_rendering_arena: Arena<CurveStyleRendering>,
    pub cylindrical_surface_arena: Arena<CylindricalSurface>,
    pub cylindricity_tolerance_arena: Arena<CylindricityTolerance>,
    pub date_arena: Arena<Date>,
    pub date_and_time_arena: Arena<DateAndTime>,
    pub date_and_time_assignment_arena: Arena<DateAndTimeAssignment>,
    pub date_role_arena: Arena<DateRole>,
    pub date_time_role_arena: Arena<DateTimeRole>,
    pub datum_arena: Arena<Datum>,
    pub datum_feature_arena: Arena<DatumFeature>,
    pub datum_reference_arena: Arena<DatumReference>,
    pub datum_reference_compartment_arena: Arena<DatumReferenceCompartment>,
    pub datum_reference_element_arena: Arena<DatumReferenceElement>,
    pub datum_reference_modifier_with_value_arena: Arena<DatumReferenceModifierWithValue>,
    pub datum_system_arena: Arena<DatumSystem>,
    pub datum_target_arena: Arena<DatumTarget>,
    pub default_model_geometric_view_arena: Arena<DefaultModelGeometricView>,
    pub defined_character_glyph_arena: Arena<DefinedCharacterGlyph>,
    pub defined_symbol_arena: Arena<DefinedSymbol>,
    pub definitional_representation_arena: Arena<DefinitionalRepresentation>,
    pub definitional_representation_relationship_arena: Arena<DefinitionalRepresentationRelationship>,
    pub definitional_representation_relationship_with_same_context_arena: Arena<DefinitionalRepresentationRelationshipWithSameContext>,
    pub degenerate_toroidal_surface_arena: Arena<DegenerateToroidalSurface>,
    pub derived_shape_aspect_arena: Arena<DerivedShapeAspect>,
    pub derived_unit_arena: Arena<DerivedUnit>,
    pub derived_unit_element_arena: Arena<DerivedUnitElement>,
    pub description_attribute_arena: Arena<DescriptionAttribute>,
    pub descriptive_representation_item_arena: Arena<DescriptiveRepresentationItem>,
    pub design_context_arena: Arena<DesignContext>,
    pub dimensional_characteristic_representation_arena: Arena<DimensionalCharacteristicRepresentation>,
    pub dimensional_exponents_arena: Arena<DimensionalExponents>,
    pub dimensional_location_arena: Arena<DimensionalLocation>,
    pub dimensional_location_with_path_arena: Arena<DimensionalLocationWithPath>,
    pub dimensional_size_arena: Arena<DimensionalSize>,
    pub dimensional_size_with_datum_feature_arena: Arena<DimensionalSizeWithDatumFeature>,
    pub dimensional_size_with_path_arena: Arena<DimensionalSizeWithPath>,
    pub directed_dimensional_location_arena: Arena<DirectedDimensionalLocation>,
    pub direction_arena: Arena<Direction>,
    pub document_arena: Arena<Document>,
    pub document_file_arena: Arena<DocumentFile>,
    pub document_product_association_arena: Arena<DocumentProductAssociation>,
    pub document_product_equivalence_arena: Arena<DocumentProductEquivalence>,
    pub document_reference_arena: Arena<DocumentReference>,
    pub document_representation_type_arena: Arena<DocumentRepresentationType>,
    pub document_type_arena: Arena<DocumentType>,
    pub draughting_annotation_occurrence_arena: Arena<DraughtingAnnotationOccurrence>,
    pub draughting_callout_arena: Arena<DraughtingCallout>,
    pub draughting_callout_relationship_arena: Arena<DraughtingCalloutRelationship>,
    pub draughting_model_arena: Arena<DraughtingModel>,
    pub draughting_model_item_association_arena: Arena<DraughtingModelItemAssociation>,
    pub draughting_model_item_association_with_placeholder_arena: Arena<DraughtingModelItemAssociationWithPlaceholder>,
    pub draughting_pre_defined_colour_arena: Arena<DraughtingPreDefinedColour>,
    pub draughting_pre_defined_curve_font_arena: Arena<DraughtingPreDefinedCurveFont>,
    pub draughting_pre_defined_text_font_arena: Arena<DraughtingPreDefinedTextFont>,
    pub edge_arena: Arena<Edge>,
    pub edge_curve_arena: Arena<EdgeCurve>,
    pub edge_loop_arena: Arena<EdgeLoop>,
    pub effectivity_arena: Arena<Effectivity>,
    pub elementary_surface_arena: Arena<ElementarySurface>,
    pub ellipse_arena: Arena<Ellipse>,
    pub expression_arena: Arena<Expression>,
    pub external_identification_assignment_arena: Arena<ExternalIdentificationAssignment>,
    pub external_source_arena: Arena<ExternalSource>,
    pub externally_defined_character_glyph_arena: Arena<ExternallyDefinedCharacterGlyph>,
    pub externally_defined_curve_font_arena: Arena<ExternallyDefinedCurveFont>,
    pub externally_defined_hatch_style_arena: Arena<ExternallyDefinedHatchStyle>,
    pub externally_defined_item_arena: Arena<ExternallyDefinedItem>,
    pub externally_defined_style_arena: Arena<ExternallyDefinedStyle>,
    pub externally_defined_symbol_arena: Arena<ExternallyDefinedSymbol>,
    pub externally_defined_text_font_arena: Arena<ExternallyDefinedTextFont>,
    pub externally_defined_tile_arena: Arena<ExternallyDefinedTile>,
    pub externally_defined_tile_style_arena: Arena<ExternallyDefinedTileStyle>,
    pub face_arena: Arena<Face>,
    pub face_bound_arena: Arena<FaceBound>,
    pub face_outer_bound_arena: Arena<FaceOuterBound>,
    pub face_surface_arena: Arena<FaceSurface>,
    pub feature_for_datum_target_relationship_arena: Arena<FeatureForDatumTargetRelationship>,
    pub fill_area_style_arena: Arena<FillAreaStyle>,
    pub fill_area_style_colour_arena: Arena<FillAreaStyleColour>,
    pub fill_area_style_hatching_arena: Arena<FillAreaStyleHatching>,
    pub fill_area_style_tile_coloured_region_arena: Arena<FillAreaStyleTileColouredRegion>,
    pub fill_area_style_tile_curve_with_style_arena: Arena<FillAreaStyleTileCurveWithStyle>,
    pub fill_area_style_tile_symbol_with_style_arena: Arena<FillAreaStyleTileSymbolWithStyle>,
    pub fill_area_style_tiles_arena: Arena<FillAreaStyleTiles>,
    pub flatness_tolerance_arena: Arena<FlatnessTolerance>,
    pub founded_item_arena: Arena<FoundedItem>,
    pub functionally_defined_transformation_arena: Arena<FunctionallyDefinedTransformation>,
    pub general_datum_reference_arena: Arena<GeneralDatumReference>,
    pub general_property_arena: Arena<GeneralProperty>,
    pub general_property_association_arena: Arena<GeneralPropertyAssociation>,
    pub generic_expression_arena: Arena<GenericExpression>,
    pub generic_literal_arena: Arena<GenericLiteral>,
    pub generic_product_definition_reference_arena: Arena<GenericProductDefinitionReference>,
    pub geometric_curve_set_arena: Arena<GeometricCurveSet>,
    pub geometric_item_specific_usage_arena: Arena<GeometricItemSpecificUsage>,
    pub geometric_representation_context_arena: Arena<GeometricRepresentationContext>,
    pub geometric_representation_item_arena: Arena<GeometricRepresentationItem>,
    pub geometric_set_arena: Arena<GeometricSet>,
    pub geometric_tolerance_arena: Arena<GeometricTolerance>,
    pub geometric_tolerance_relationship_arena: Arena<GeometricToleranceRelationship>,
    pub geometric_tolerance_with_datum_reference_arena: Arena<GeometricToleranceWithDatumReference>,
    pub geometric_tolerance_with_defined_area_unit_arena: Arena<GeometricToleranceWithDefinedAreaUnit>,
    pub geometric_tolerance_with_defined_unit_arena: Arena<GeometricToleranceWithDefinedUnit>,
    pub geometric_tolerance_with_maximum_tolerance_arena: Arena<GeometricToleranceWithMaximumTolerance>,
    pub geometric_tolerance_with_modifiers_arena: Arena<GeometricToleranceWithModifiers>,
    pub geometrically_bounded_surface_shape_representation_arena: Arena<GeometricallyBoundedSurfaceShapeRepresentation>,
    pub geometrically_bounded_wireframe_shape_representation_arena: Arena<GeometricallyBoundedWireframeShapeRepresentation>,
    pub global_uncertainty_assigned_context_arena: Arena<GlobalUncertaintyAssignedContext>,
    pub global_unit_assigned_context_arena: Arena<GlobalUnitAssignedContext>,
    pub group_arena: Arena<Group>,
    pub group_assignment_arena: Arena<GroupAssignment>,
    pub hyperbola_arena: Arena<Hyperbola>,
    pub id_attribute_arena: Arena<IdAttribute>,
    pub identification_assignment_arena: Arena<IdentificationAssignment>,
    pub identification_role_arena: Arena<IdentificationRole>,
    pub int_literal_arena: Arena<IntLiteral>,
    pub integer_representation_item_arena: Arena<IntegerRepresentationItem>,
    pub intersection_curve_arena: Arena<IntersectionCurve>,
    pub invisibility_arena: Arena<Invisibility>,
    pub item_defined_transformation_arena: Arena<ItemDefinedTransformation>,
    pub item_identified_representation_usage_arena: Arena<ItemIdentifiedRepresentationUsage>,
    pub leader_curve_arena: Arena<LeaderCurve>,
    pub leader_directed_callout_arena: Arena<LeaderDirectedCallout>,
    pub leader_terminator_arena: Arena<LeaderTerminator>,
    pub length_measure_with_unit_arena: Arena<LengthMeasureWithUnit>,
    pub length_unit_arena: Arena<LengthUnit>,
    pub limits_and_fits_arena: Arena<LimitsAndFits>,
    pub line_arena: Arena<Line>,
    pub line_profile_tolerance_arena: Arena<LineProfileTolerance>,
    pub literal_number_arena: Arena<LiteralNumber>,
    pub local_time_arena: Arena<LocalTime>,
    pub loop_arena: Arena<Loop>,
    pub make_from_usage_option_arena: Arena<MakeFromUsageOption>,
    pub manifold_solid_brep_arena: Arena<ManifoldSolidBrep>,
    pub manifold_surface_shape_representation_arena: Arena<ManifoldSurfaceShapeRepresentation>,
    pub mapped_item_arena: Arena<MappedItem>,
    pub mass_measure_with_unit_arena: Arena<MassMeasureWithUnit>,
    pub mass_unit_arena: Arena<MassUnit>,
    pub measure_qualification_arena: Arena<MeasureQualification>,
    pub measure_representation_item_arena: Arena<MeasureRepresentationItem>,
    pub measure_with_unit_arena: Arena<MeasureWithUnit>,
    pub mechanical_context_arena: Arena<MechanicalContext>,
    pub mechanical_design_and_draughting_relationship_arena: Arena<MechanicalDesignAndDraughtingRelationship>,
    pub mechanical_design_geometric_presentation_representation_arena: Arena<MechanicalDesignGeometricPresentationRepresentation>,
    pub mechanical_design_presentation_representation_with_draughting_arena: Arena<MechanicalDesignPresentationRepresentationWithDraughting>,
    pub mechanical_design_shaded_presentation_representation_arena: Arena<MechanicalDesignShadedPresentationRepresentation>,
    pub model_geometric_view_arena: Arena<ModelGeometricView>,
    pub modified_geometric_tolerance_arena: Arena<ModifiedGeometricTolerance>,
    pub name_attribute_arena: Arena<NameAttribute>,
    pub named_unit_arena: Arena<NamedUnit>,
    pub next_assembly_usage_occurrence_arena: Arena<NextAssemblyUsageOccurrence>,
    pub numeric_expression_arena: Arena<NumericExpression>,
    pub object_role_arena: Arena<ObjectRole>,
    pub offset_surface_arena: Arena<OffsetSurface>,
    pub one_direction_repeat_factor_arena: Arena<OneDirectionRepeatFactor>,
    pub open_shell_arena: Arena<OpenShell>,
    pub organization_arena: Arena<Organization>,
    pub organization_relationship_arena: Arena<OrganizationRelationship>,
    pub organization_role_arena: Arena<OrganizationRole>,
    pub organization_type_arena: Arena<OrganizationType>,
    pub organization_type_role_arena: Arena<OrganizationTypeRole>,
    pub organizational_address_arena: Arena<OrganizationalAddress>,
    pub organizational_project_arena: Arena<OrganizationalProject>,
    pub organizational_project_relationship_arena: Arena<OrganizationalProjectRelationship>,
    pub organizational_project_role_arena: Arena<OrganizationalProjectRole>,
    pub oriented_closed_shell_arena: Arena<OrientedClosedShell>,
    pub oriented_edge_arena: Arena<OrientedEdge>,
    pub over_riding_styled_item_arena: Arena<OverRidingStyledItem>,
    pub parallelism_tolerance_arena: Arena<ParallelismTolerance>,
    pub parametric_representation_context_arena: Arena<ParametricRepresentationContext>,
    pub path_arena: Arena<Path>,
    pub pcurve_arena: Arena<Pcurve>,
    pub perpendicularity_tolerance_arena: Arena<PerpendicularityTolerance>,
    pub person_arena: Arena<Person>,
    pub person_and_organization_arena: Arena<PersonAndOrganization>,
    pub person_and_organization_address_arena: Arena<PersonAndOrganizationAddress>,
    pub person_and_organization_assignment_arena: Arena<PersonAndOrganizationAssignment>,
    pub person_and_organization_role_arena: Arena<PersonAndOrganizationRole>,
    pub personal_address_arena: Arena<PersonalAddress>,
    pub placed_datum_target_feature_arena: Arena<PlacedDatumTargetFeature>,
    pub placement_arena: Arena<Placement>,
    pub planar_box_arena: Arena<PlanarBox>,
    pub planar_extent_arena: Arena<PlanarExtent>,
    pub plane_arena: Arena<Plane>,
    pub plane_angle_measure_with_unit_arena: Arena<PlaneAngleMeasureWithUnit>,
    pub plane_angle_unit_arena: Arena<PlaneAngleUnit>,
    pub plus_minus_tolerance_arena: Arena<PlusMinusTolerance>,
    pub point_arena: Arena<Point>,
    pub point_style_arena: Arena<PointStyle>,
    pub poly_loop_arena: Arena<PolyLoop>,
    pub polyline_arena: Arena<Polyline>,
    pub position_tolerance_arena: Arena<PositionTolerance>,
    pub pre_defined_character_glyph_arena: Arena<PreDefinedCharacterGlyph>,
    pub pre_defined_colour_arena: Arena<PreDefinedColour>,
    pub pre_defined_curve_font_arena: Arena<PreDefinedCurveFont>,
    pub pre_defined_item_arena: Arena<PreDefinedItem>,
    pub pre_defined_marker_arena: Arena<PreDefinedMarker>,
    pub pre_defined_point_marker_symbol_arena: Arena<PreDefinedPointMarkerSymbol>,
    pub pre_defined_presentation_style_arena: Arena<PreDefinedPresentationStyle>,
    pub pre_defined_surface_side_style_arena: Arena<PreDefinedSurfaceSideStyle>,
    pub pre_defined_symbol_arena: Arena<PreDefinedSymbol>,
    pub pre_defined_terminator_symbol_arena: Arena<PreDefinedTerminatorSymbol>,
    pub pre_defined_text_font_arena: Arena<PreDefinedTextFont>,
    pub pre_defined_tile_arena: Arena<PreDefinedTile>,
    pub precision_qualifier_arena: Arena<PrecisionQualifier>,
    pub presentation_area_arena: Arena<PresentationArea>,
    pub presentation_layer_assignment_arena: Arena<PresentationLayerAssignment>,
    pub presentation_representation_arena: Arena<PresentationRepresentation>,
    pub presentation_set_arena: Arena<PresentationSet>,
    pub presentation_size_arena: Arena<PresentationSize>,
    pub presentation_style_assignment_arena: Arena<PresentationStyleAssignment>,
    pub presentation_style_by_context_arena: Arena<PresentationStyleByContext>,
    pub presentation_view_arena: Arena<PresentationView>,
    pub presented_item_arena: Arena<PresentedItem>,
    pub presented_item_representation_arena: Arena<PresentedItemRepresentation>,
    pub product_arena: Arena<Product>,
    pub product_category_arena: Arena<ProductCategory>,
    pub product_category_relationship_arena: Arena<ProductCategoryRelationship>,
    pub product_concept_arena: Arena<ProductConcept>,
    pub product_concept_context_arena: Arena<ProductConceptContext>,
    pub product_concept_feature_arena: Arena<ProductConceptFeature>,
    pub product_concept_feature_category_arena: Arena<ProductConceptFeatureCategory>,
    pub product_context_arena: Arena<ProductContext>,
    pub product_definition_arena: Arena<ProductDefinition>,
    pub product_definition_context_arena: Arena<ProductDefinitionContext>,
    pub product_definition_context_association_arena: Arena<ProductDefinitionContextAssociation>,
    pub product_definition_context_role_arena: Arena<ProductDefinitionContextRole>,
    pub product_definition_effectivity_arena: Arena<ProductDefinitionEffectivity>,
    pub product_definition_formation_arena: Arena<ProductDefinitionFormation>,
    pub product_definition_formation_with_specified_source_arena: Arena<ProductDefinitionFormationWithSpecifiedSource>,
    pub product_definition_occurrence_arena: Arena<ProductDefinitionOccurrence>,
    pub product_definition_relationship_arena: Arena<ProductDefinitionRelationship>,
    pub product_definition_relationship_relationship_arena: Arena<ProductDefinitionRelationshipRelationship>,
    pub product_definition_shape_arena: Arena<ProductDefinitionShape>,
    pub product_definition_substitute_arena: Arena<ProductDefinitionSubstitute>,
    pub product_definition_usage_arena: Arena<ProductDefinitionUsage>,
    pub product_definition_with_associated_documents_arena: Arena<ProductDefinitionWithAssociatedDocuments>,
    pub product_related_product_category_arena: Arena<ProductRelatedProductCategory>,
    pub projected_zone_definition_arena: Arena<ProjectedZoneDefinition>,
    pub property_definition_arena: Arena<PropertyDefinition>,
    pub property_definition_relationship_arena: Arena<PropertyDefinitionRelationship>,
    pub property_definition_representation_arena: Arena<PropertyDefinitionRepresentation>,
    pub qualified_representation_item_arena: Arena<QualifiedRepresentationItem>,
    pub quasi_uniform_curve_arena: Arena<QuasiUniformCurve>,
    pub quasi_uniform_surface_arena: Arena<QuasiUniformSurface>,
    pub ratio_measure_with_unit_arena: Arena<RatioMeasureWithUnit>,
    pub ratio_unit_arena: Arena<RatioUnit>,
    pub rational_b_spline_curve_arena: Arena<RationalBSplineCurve>,
    pub rational_b_spline_surface_arena: Arena<RationalBSplineSurface>,
    pub real_literal_arena: Arena<RealLiteral>,
    pub real_representation_item_arena: Arena<RealRepresentationItem>,
    pub repositioned_tessellated_item_arena: Arena<RepositionedTessellatedItem>,
    pub representation_arena: Arena<Representation>,
    pub representation_context_arena: Arena<RepresentationContext>,
    pub representation_context_reference_arena: Arena<RepresentationContextReference>,
    pub representation_item_arena: Arena<RepresentationItem>,
    pub representation_map_arena: Arena<RepresentationMap>,
    pub representation_reference_arena: Arena<RepresentationReference>,
    pub representation_relationship_arena: Arena<RepresentationRelationship>,
    pub representation_relationship_with_transformation_arena: Arena<RepresentationRelationshipWithTransformation>,
    pub resource_property_arena: Arena<ResourceProperty>,
    pub resource_requirement_type_arena: Arena<ResourceRequirementType>,
    pub role_association_arena: Arena<RoleAssociation>,
    pub roundness_tolerance_arena: Arena<RoundnessTolerance>,
    pub seam_curve_arena: Arena<SeamCurve>,
    pub security_classification_arena: Arena<SecurityClassification>,
    pub security_classification_assignment_arena: Arena<SecurityClassificationAssignment>,
    pub security_classification_level_arena: Arena<SecurityClassificationLevel>,
    pub shape_aspect_arena: Arena<ShapeAspect>,
    pub shape_aspect_associativity_arena: Arena<ShapeAspectAssociativity>,
    pub shape_aspect_deriving_relationship_arena: Arena<ShapeAspectDerivingRelationship>,
    pub shape_aspect_relationship_arena: Arena<ShapeAspectRelationship>,
    pub shape_definition_representation_arena: Arena<ShapeDefinitionRepresentation>,
    pub shape_dimension_representation_arena: Arena<ShapeDimensionRepresentation>,
    pub shape_representation_arena: Arena<ShapeRepresentation>,
    pub shape_representation_relationship_arena: Arena<ShapeRepresentationRelationship>,
    pub shape_representation_with_parameters_arena: Arena<ShapeRepresentationWithParameters>,
    pub shell_based_surface_model_arena: Arena<ShellBasedSurfaceModel>,
    pub si_unit_arena: Arena<SiUnit>,
    pub simple_generic_expression_arena: Arena<SimpleGenericExpression>,
    pub simple_numeric_expression_arena: Arena<SimpleNumericExpression>,
    pub solid_angle_unit_arena: Arena<SolidAngleUnit>,
    pub solid_model_arena: Arena<SolidModel>,
    pub spherical_surface_arena: Arena<SphericalSurface>,
    pub start_request_arena: Arena<StartRequest>,
    pub start_work_arena: Arena<StartWork>,
    pub state_observed_arena: Arena<StateObserved>,
    pub state_type_arena: Arena<StateType>,
    pub straightness_tolerance_arena: Arena<StraightnessTolerance>,
    pub styled_item_arena: Arena<StyledItem>,
    pub surface_arena: Arena<Surface>,
    pub surface_curve_arena: Arena<SurfaceCurve>,
    pub surface_of_linear_extrusion_arena: Arena<SurfaceOfLinearExtrusion>,
    pub surface_of_revolution_arena: Arena<SurfaceOfRevolution>,
    pub surface_profile_tolerance_arena: Arena<SurfaceProfileTolerance>,
    pub surface_rendering_properties_arena: Arena<SurfaceRenderingProperties>,
    pub surface_side_style_arena: Arena<SurfaceSideStyle>,
    pub surface_style_boundary_arena: Arena<SurfaceStyleBoundary>,
    pub surface_style_control_grid_arena: Arena<SurfaceStyleControlGrid>,
    pub surface_style_fill_area_arena: Arena<SurfaceStyleFillArea>,
    pub surface_style_parameter_line_arena: Arena<SurfaceStyleParameterLine>,
    pub surface_style_reflectance_ambient_arena: Arena<SurfaceStyleReflectanceAmbient>,
    pub surface_style_rendering_arena: Arena<SurfaceStyleRendering>,
    pub surface_style_rendering_with_properties_arena: Arena<SurfaceStyleRenderingWithProperties>,
    pub surface_style_segmentation_curve_arena: Arena<SurfaceStyleSegmentationCurve>,
    pub surface_style_silhouette_arena: Arena<SurfaceStyleSilhouette>,
    pub surface_style_transparent_arena: Arena<SurfaceStyleTransparent>,
    pub surface_style_usage_arena: Arena<SurfaceStyleUsage>,
    pub swept_surface_arena: Arena<SweptSurface>,
    pub symbol_colour_arena: Arena<SymbolColour>,
    pub symbol_representation_arena: Arena<SymbolRepresentation>,
    pub symbol_style_arena: Arena<SymbolStyle>,
    pub symbol_target_arena: Arena<SymbolTarget>,
    pub symmetry_tolerance_arena: Arena<SymmetryTolerance>,
    pub terminator_symbol_arena: Arena<TerminatorSymbol>,
    pub tessellated_annotation_occurrence_arena: Arena<TessellatedAnnotationOccurrence>,
    pub tessellated_curve_set_arena: Arena<TessellatedCurveSet>,
    pub tessellated_face_arena: Arena<TessellatedFace>,
    pub tessellated_geometric_set_arena: Arena<TessellatedGeometricSet>,
    pub tessellated_item_arena: Arena<TessellatedItem>,
    pub tessellated_shape_representation_arena: Arena<TessellatedShapeRepresentation>,
    pub tessellated_shell_arena: Arena<TessellatedShell>,
    pub tessellated_solid_arena: Arena<TessellatedSolid>,
    pub tessellated_structured_item_arena: Arena<TessellatedStructuredItem>,
    pub tessellated_surface_set_arena: Arena<TessellatedSurfaceSet>,
    pub text_font_arena: Arena<TextFont>,
    pub text_literal_arena: Arena<TextLiteral>,
    pub text_style_arena: Arena<TextStyle>,
    pub text_style_for_defined_font_arena: Arena<TextStyleForDefinedFont>,
    pub text_style_with_box_characteristics_arena: Arena<TextStyleWithBoxCharacteristics>,
    pub texture_style_specification_arena: Arena<TextureStyleSpecification>,
    pub texture_style_tessellation_specification_arena: Arena<TextureStyleTessellationSpecification>,
    pub time_unit_arena: Arena<TimeUnit>,
    pub tolerance_value_arena: Arena<ToleranceValue>,
    pub tolerance_zone_arena: Arena<ToleranceZone>,
    pub tolerance_zone_definition_arena: Arena<ToleranceZoneDefinition>,
    pub tolerance_zone_form_arena: Arena<ToleranceZoneForm>,
    pub tolerance_zone_with_datum_arena: Arena<ToleranceZoneWithDatum>,
    pub topological_representation_item_arena: Arena<TopologicalRepresentationItem>,
    pub toroidal_surface_arena: Arena<ToroidalSurface>,
    pub total_runout_tolerance_arena: Arena<TotalRunoutTolerance>,
    pub trimmed_curve_arena: Arena<TrimmedCurve>,
    pub two_direction_repeat_factor_arena: Arena<TwoDirectionRepeatFactor>,
    pub type_qualifier_arena: Arena<TypeQualifier>,
    pub uncertainty_measure_with_unit_arena: Arena<UncertaintyMeasureWithUnit>,
    pub uncertainty_qualifier_arena: Arena<UncertaintyQualifier>,
    pub unequally_disposed_geometric_tolerance_arena: Arena<UnequallyDisposedGeometricTolerance>,
    pub uniform_curve_arena: Arena<UniformCurve>,
    pub uniform_surface_arena: Arena<UniformSurface>,
    pub value_format_type_qualifier_arena: Arena<ValueFormatTypeQualifier>,
    pub value_representation_item_arena: Arena<ValueRepresentationItem>,
    pub vector_arena: Arena<Vector>,
    pub versioned_action_request_arena: Arena<VersionedActionRequest>,
    pub vertex_arena: Arena<Vertex>,
    pub vertex_loop_arena: Arena<VertexLoop>,
    pub vertex_point_arena: Arena<VertexPoint>,
    pub vertex_shell_arena: Arena<VertexShell>,
    pub view_volume_arena: Arena<ViewVolume>,
    pub volume_unit_arena: Arena<VolumeUnit>,
    pub wire_shell_arena: Arena<WireShell>,
    pub complex_unit_arena: Arena<ComplexUnit>,
    /* private fields */
}

Fields

action_arena: Arena<Action>

action_assignment_arena: Arena<ActionAssignment>

action_directive_arena: Arena<ActionDirective>

action_method_arena: Arena<ActionMethod>

action_method_relationship_arena: Arena<ActionMethodRelationship>

action_property_arena: Arena<ActionProperty>

action_relationship_arena: Arena<ActionRelationship>

action_request_assignment_arena: Arena<ActionRequestAssignment>

action_request_solution_arena: Arena<ActionRequestSolution>

action_resource_arena: Arena<ActionResource>

action_resource_relationship_arena: Arena<ActionResourceRelationship>

action_resource_requirement_arena: Arena<ActionResourceRequirement>

action_resource_type_arena: Arena<ActionResourceType>

address_arena: Arena<Address>

advanced_brep_shape_representation_arena: Arena<AdvancedBrepShapeRepresentation>

advanced_face_arena: Arena<AdvancedFace>

all_around_shape_aspect_arena: Arena<AllAroundShapeAspect>

angular_location_arena: Arena<AngularLocation>

angular_size_arena: Arena<AngularSize>

angularity_tolerance_arena: Arena<AngularityTolerance>

annotation_curve_occurrence_arena: Arena<AnnotationCurveOccurrence>

annotation_fill_area_occurrence_arena: Arena<AnnotationFillAreaOccurrence>

annotation_occurrence_arena: Arena<AnnotationOccurrence>

annotation_occurrence_associativity_arena: Arena<AnnotationOccurrenceAssociativity>

annotation_occurrence_relationship_arena: Arena<AnnotationOccurrenceRelationship>

annotation_placeholder_leader_line_arena: Arena<AnnotationPlaceholderLeaderLine>

annotation_placeholder_occurrence_arena: Arena<AnnotationPlaceholderOccurrence>

annotation_placeholder_occurrence_with_leader_line_arena: Arena<AnnotationPlaceholderOccurrenceWithLeaderLine>

annotation_plane_arena: Arena<AnnotationPlane>

annotation_symbol_arena: Arena<AnnotationSymbol>

annotation_symbol_occurrence_arena: Arena<AnnotationSymbolOccurrence>

annotation_text_arena: Arena<AnnotationText>

annotation_text_character_arena: Arena<AnnotationTextCharacter>

annotation_text_occurrence_arena: Arena<AnnotationTextOccurrence>

annotation_to_annotation_leader_line_arena: Arena<AnnotationToAnnotationLeaderLine>

annotation_to_model_leader_line_arena: Arena<AnnotationToModelLeaderLine>

apll_point_arena: Arena<ApllPoint>

apll_point_with_surface_arena: Arena<ApllPointWithSurface>

application_context_arena: Arena<ApplicationContext>

application_context_element_arena: Arena<ApplicationContextElement>

application_protocol_definition_arena: Arena<ApplicationProtocolDefinition>

applied_approval_assignment_arena: Arena<AppliedApprovalAssignment>

applied_date_and_time_assignment_arena: Arena<AppliedDateAndTimeAssignment>

applied_document_reference_arena: Arena<AppliedDocumentReference>

applied_external_identification_assignment_arena: Arena<AppliedExternalIdentificationAssignment>

applied_group_assignment_arena: Arena<AppliedGroupAssignment>

applied_person_and_organization_assignment_arena: Arena<AppliedPersonAndOrganizationAssignment>

applied_presented_item_arena: Arena<AppliedPresentedItem>

applied_security_classification_assignment_arena: Arena<AppliedSecurityClassificationAssignment>

approval_arena: Arena<Approval>

approval_assignment_arena: Arena<ApprovalAssignment>

approval_date_time_arena: Arena<ApprovalDateTime>

approval_person_organization_arena: Arena<ApprovalPersonOrganization>

approval_role_arena: Arena<ApprovalRole>

approval_status_arena: Arena<ApprovalStatus>

approximation_tolerance_arena: Arena<ApproximationTolerance>

approximation_tolerance_deviation_arena: Arena<ApproximationToleranceDeviation>

approximation_tolerance_parameter_arena: Arena<ApproximationToleranceParameter>

area_in_set_arena: Arena<AreaInSet>

area_unit_arena: Arena<AreaUnit>

ascribable_state_arena: Arena<AscribableState>

ascribable_state_relationship_arena: Arena<AscribableStateRelationship>

assembly_component_usage_arena: Arena<AssemblyComponentUsage>

auxiliary_leader_line_arena: Arena<AuxiliaryLeaderLine>

axis1_placement_arena: Arena<Axis1Placement>

axis2_placement2d_arena: Arena<Axis2Placement2d>

axis2_placement3d_arena: Arena<Axis2Placement3d>

b_spline_curve_arena: Arena<BSplineCurve>

b_spline_curve_with_knots_arena: Arena<BSplineCurveWithKnots>

b_spline_surface_arena: Arena<BSplineSurface>

b_spline_surface_with_knots_arena: Arena<BSplineSurfaceWithKnots>

bezier_curve_arena: Arena<BezierCurve>

bezier_surface_arena: Arena<BezierSurface>

bounded_curve_arena: Arena<BoundedCurve>

bounded_pcurve_arena: Arena<BoundedPcurve>

bounded_surface_arena: Arena<BoundedSurface>

bounded_surface_curve_arena: Arena<BoundedSurfaceCurve>

brep_with_voids_arena: Arena<BrepWithVoids>

calendar_date_arena: Arena<CalendarDate>

camera_image_arena: Arena<CameraImage>

camera_image3d_with_scale_arena: Arena<CameraImage3dWithScale>

camera_model_arena: Arena<CameraModel>

camera_model_d3_arena: Arena<CameraModelD3>

camera_model_d3_multi_clipping_arena: Arena<CameraModelD3MultiClipping>

camera_model_d3_with_hlhsr_arena: Arena<CameraModelD3WithHlhsr>

camera_usage_arena: Arena<CameraUsage>

cartesian_point_arena: Arena<CartesianPoint>

cc_design_approval_arena: Arena<CcDesignApproval>

cc_design_date_and_time_assignment_arena: Arena<CcDesignDateAndTimeAssignment>

cc_design_person_and_organization_assignment_arena: Arena<CcDesignPersonAndOrganizationAssignment>

cc_design_security_classification_arena: Arena<CcDesignSecurityClassification>

centre_of_symmetry_arena: Arena<CentreOfSymmetry>

certification_arena: Arena<Certification>

certification_type_arena: Arena<CertificationType>

change_arena: Arena<Change>

change_request_arena: Arena<ChangeRequest>

character_glyph_style_outline_arena: Arena<CharacterGlyphStyleOutline>

character_glyph_style_stroke_arena: Arena<CharacterGlyphStyleStroke>

characterized_item_within_representation_arena: Arena<CharacterizedItemWithinRepresentation>

characterized_object_arena: Arena<CharacterizedObject>

characterized_representation_arena: Arena<CharacterizedRepresentation>

circle_arena: Arena<Circle>

circular_runout_tolerance_arena: Arena<CircularRunoutTolerance>

closed_shell_arena: Arena<ClosedShell>

coaxiality_tolerance_arena: Arena<CoaxialityTolerance>

colour_arena: Arena<Colour>

colour_rgb_arena: Arena<ColourRgb>

colour_specification_arena: Arena<ColourSpecification>

common_datum_arena: Arena<CommonDatum>

complex_triangulated_face_arena: Arena<ComplexTriangulatedFace>

complex_triangulated_surface_set_arena: Arena<ComplexTriangulatedSurfaceSet>

composite_curve_arena: Arena<CompositeCurve>

composite_curve_segment_arena: Arena<CompositeCurveSegment>

composite_group_shape_aspect_arena: Arena<CompositeGroupShapeAspect>

composite_shape_aspect_arena: Arena<CompositeShapeAspect>

composite_text_arena: Arena<CompositeText>

compound_representation_item_arena: Arena<CompoundRepresentationItem>

concentricity_tolerance_arena: Arena<ConcentricityTolerance>

configuration_design_arena: Arena<ConfigurationDesign>

configuration_effectivity_arena: Arena<ConfigurationEffectivity>

configuration_item_arena: Arena<ConfigurationItem>

conic_arena: Arena<Conic>

conical_surface_arena: Arena<ConicalSurface>

connected_face_set_arena: Arena<ConnectedFaceSet>

constructive_geometry_representation_arena: Arena<ConstructiveGeometryRepresentation>

constructive_geometry_representation_relationship_arena: Arena<ConstructiveGeometryRepresentationRelationship>

context_dependent_over_riding_styled_item_arena: Arena<ContextDependentOverRidingStyledItem>

context_dependent_shape_representation_arena: Arena<ContextDependentShapeRepresentation>

context_dependent_unit_arena: Arena<ContextDependentUnit>

continuous_shape_aspect_arena: Arena<ContinuousShapeAspect>

contract_arena: Arena<Contract>

contract_type_arena: Arena<ContractType>

conversion_based_unit_arena: Arena<ConversionBasedUnit>

coordinated_universal_time_offset_arena: Arena<CoordinatedUniversalTimeOffset>

coordinates_list_arena: Arena<CoordinatesList>

curve_arena: Arena<Curve>

curve_style_arena: Arena<CurveStyle>

curve_style_font_arena: Arena<CurveStyleFont>

curve_style_font_and_scaling_arena: Arena<CurveStyleFontAndScaling>

curve_style_font_pattern_arena: Arena<CurveStyleFontPattern>

curve_style_rendering_arena: Arena<CurveStyleRendering>

cylindrical_surface_arena: Arena<CylindricalSurface>

cylindricity_tolerance_arena: Arena<CylindricityTolerance>

date_arena: Arena<Date>

date_and_time_arena: Arena<DateAndTime>

date_and_time_assignment_arena: Arena<DateAndTimeAssignment>

date_role_arena: Arena<DateRole>

date_time_role_arena: Arena<DateTimeRole>

datum_arena: Arena<Datum>

datum_feature_arena: Arena<DatumFeature>

datum_reference_arena: Arena<DatumReference>

datum_reference_compartment_arena: Arena<DatumReferenceCompartment>

datum_reference_element_arena: Arena<DatumReferenceElement>

datum_reference_modifier_with_value_arena: Arena<DatumReferenceModifierWithValue>

datum_system_arena: Arena<DatumSystem>

datum_target_arena: Arena<DatumTarget>

default_model_geometric_view_arena: Arena<DefaultModelGeometricView>

defined_character_glyph_arena: Arena<DefinedCharacterGlyph>

defined_symbol_arena: Arena<DefinedSymbol>

definitional_representation_arena: Arena<DefinitionalRepresentation>

definitional_representation_relationship_arena: Arena<DefinitionalRepresentationRelationship>

definitional_representation_relationship_with_same_context_arena: Arena<DefinitionalRepresentationRelationshipWithSameContext>

degenerate_toroidal_surface_arena: Arena<DegenerateToroidalSurface>

derived_shape_aspect_arena: Arena<DerivedShapeAspect>

derived_unit_arena: Arena<DerivedUnit>

derived_unit_element_arena: Arena<DerivedUnitElement>

description_attribute_arena: Arena<DescriptionAttribute>

descriptive_representation_item_arena: Arena<DescriptiveRepresentationItem>

design_context_arena: Arena<DesignContext>

dimensional_characteristic_representation_arena: Arena<DimensionalCharacteristicRepresentation>

dimensional_exponents_arena: Arena<DimensionalExponents>

dimensional_location_arena: Arena<DimensionalLocation>

dimensional_location_with_path_arena: Arena<DimensionalLocationWithPath>

dimensional_size_arena: Arena<DimensionalSize>

dimensional_size_with_datum_feature_arena: Arena<DimensionalSizeWithDatumFeature>

dimensional_size_with_path_arena: Arena<DimensionalSizeWithPath>

directed_dimensional_location_arena: Arena<DirectedDimensionalLocation>

direction_arena: Arena<Direction>

document_arena: Arena<Document>

document_file_arena: Arena<DocumentFile>

document_product_association_arena: Arena<DocumentProductAssociation>

document_product_equivalence_arena: Arena<DocumentProductEquivalence>

document_reference_arena: Arena<DocumentReference>

document_representation_type_arena: Arena<DocumentRepresentationType>

document_type_arena: Arena<DocumentType>

draughting_annotation_occurrence_arena: Arena<DraughtingAnnotationOccurrence>

draughting_callout_arena: Arena<DraughtingCallout>

draughting_callout_relationship_arena: Arena<DraughtingCalloutRelationship>

draughting_model_arena: Arena<DraughtingModel>

draughting_model_item_association_arena: Arena<DraughtingModelItemAssociation>

draughting_model_item_association_with_placeholder_arena: Arena<DraughtingModelItemAssociationWithPlaceholder>

draughting_pre_defined_colour_arena: Arena<DraughtingPreDefinedColour>

draughting_pre_defined_curve_font_arena: Arena<DraughtingPreDefinedCurveFont>

draughting_pre_defined_text_font_arena: Arena<DraughtingPreDefinedTextFont>

edge_arena: Arena<Edge>

edge_curve_arena: Arena<EdgeCurve>

edge_loop_arena: Arena<EdgeLoop>

effectivity_arena: Arena<Effectivity>

elementary_surface_arena: Arena<ElementarySurface>

ellipse_arena: Arena<Ellipse>

expression_arena: Arena<Expression>

external_identification_assignment_arena: Arena<ExternalIdentificationAssignment>

external_source_arena: Arena<ExternalSource>

externally_defined_character_glyph_arena: Arena<ExternallyDefinedCharacterGlyph>

externally_defined_curve_font_arena: Arena<ExternallyDefinedCurveFont>

externally_defined_hatch_style_arena: Arena<ExternallyDefinedHatchStyle>

externally_defined_item_arena: Arena<ExternallyDefinedItem>

externally_defined_style_arena: Arena<ExternallyDefinedStyle>

externally_defined_symbol_arena: Arena<ExternallyDefinedSymbol>

externally_defined_text_font_arena: Arena<ExternallyDefinedTextFont>

externally_defined_tile_arena: Arena<ExternallyDefinedTile>

externally_defined_tile_style_arena: Arena<ExternallyDefinedTileStyle>

face_arena: Arena<Face>

face_bound_arena: Arena<FaceBound>

face_outer_bound_arena: Arena<FaceOuterBound>

face_surface_arena: Arena<FaceSurface>

feature_for_datum_target_relationship_arena: Arena<FeatureForDatumTargetRelationship>

fill_area_style_arena: Arena<FillAreaStyle>

fill_area_style_colour_arena: Arena<FillAreaStyleColour>

fill_area_style_hatching_arena: Arena<FillAreaStyleHatching>

fill_area_style_tile_coloured_region_arena: Arena<FillAreaStyleTileColouredRegion>

fill_area_style_tile_curve_with_style_arena: Arena<FillAreaStyleTileCurveWithStyle>

fill_area_style_tile_symbol_with_style_arena: Arena<FillAreaStyleTileSymbolWithStyle>

fill_area_style_tiles_arena: Arena<FillAreaStyleTiles>

flatness_tolerance_arena: Arena<FlatnessTolerance>

founded_item_arena: Arena<FoundedItem>

functionally_defined_transformation_arena: Arena<FunctionallyDefinedTransformation>

general_datum_reference_arena: Arena<GeneralDatumReference>

general_property_arena: Arena<GeneralProperty>

general_property_association_arena: Arena<GeneralPropertyAssociation>

generic_expression_arena: Arena<GenericExpression>

generic_literal_arena: Arena<GenericLiteral>

generic_product_definition_reference_arena: Arena<GenericProductDefinitionReference>

geometric_curve_set_arena: Arena<GeometricCurveSet>

geometric_item_specific_usage_arena: Arena<GeometricItemSpecificUsage>

geometric_representation_context_arena: Arena<GeometricRepresentationContext>

geometric_representation_item_arena: Arena<GeometricRepresentationItem>

geometric_set_arena: Arena<GeometricSet>

geometric_tolerance_arena: Arena<GeometricTolerance>

geometric_tolerance_relationship_arena: Arena<GeometricToleranceRelationship>

geometric_tolerance_with_datum_reference_arena: Arena<GeometricToleranceWithDatumReference>

geometric_tolerance_with_defined_area_unit_arena: Arena<GeometricToleranceWithDefinedAreaUnit>

geometric_tolerance_with_defined_unit_arena: Arena<GeometricToleranceWithDefinedUnit>

geometric_tolerance_with_maximum_tolerance_arena: Arena<GeometricToleranceWithMaximumTolerance>

geometric_tolerance_with_modifiers_arena: Arena<GeometricToleranceWithModifiers>

geometrically_bounded_surface_shape_representation_arena: Arena<GeometricallyBoundedSurfaceShapeRepresentation>

geometrically_bounded_wireframe_shape_representation_arena: Arena<GeometricallyBoundedWireframeShapeRepresentation>

global_uncertainty_assigned_context_arena: Arena<GlobalUncertaintyAssignedContext>

global_unit_assigned_context_arena: Arena<GlobalUnitAssignedContext>

group_arena: Arena<Group>

group_assignment_arena: Arena<GroupAssignment>

hyperbola_arena: Arena<Hyperbola>

id_attribute_arena: Arena<IdAttribute>

identification_assignment_arena: Arena<IdentificationAssignment>

identification_role_arena: Arena<IdentificationRole>

int_literal_arena: Arena<IntLiteral>

integer_representation_item_arena: Arena<IntegerRepresentationItem>

intersection_curve_arena: Arena<IntersectionCurve>

invisibility_arena: Arena<Invisibility>

item_defined_transformation_arena: Arena<ItemDefinedTransformation>

item_identified_representation_usage_arena: Arena<ItemIdentifiedRepresentationUsage>

leader_curve_arena: Arena<LeaderCurve>

leader_directed_callout_arena: Arena<LeaderDirectedCallout>

leader_terminator_arena: Arena<LeaderTerminator>

length_measure_with_unit_arena: Arena<LengthMeasureWithUnit>

length_unit_arena: Arena<LengthUnit>

limits_and_fits_arena: Arena<LimitsAndFits>

line_arena: Arena<Line>

line_profile_tolerance_arena: Arena<LineProfileTolerance>

literal_number_arena: Arena<LiteralNumber>

local_time_arena: Arena<LocalTime>

loop_arena: Arena<Loop>

make_from_usage_option_arena: Arena<MakeFromUsageOption>

manifold_solid_brep_arena: Arena<ManifoldSolidBrep>

manifold_surface_shape_representation_arena: Arena<ManifoldSurfaceShapeRepresentation>

mapped_item_arena: Arena<MappedItem>

mass_measure_with_unit_arena: Arena<MassMeasureWithUnit>

mass_unit_arena: Arena<MassUnit>

measure_qualification_arena: Arena<MeasureQualification>

measure_representation_item_arena: Arena<MeasureRepresentationItem>

measure_with_unit_arena: Arena<MeasureWithUnit>

mechanical_context_arena: Arena<MechanicalContext>

mechanical_design_and_draughting_relationship_arena: Arena<MechanicalDesignAndDraughtingRelationship>

mechanical_design_geometric_presentation_representation_arena: Arena<MechanicalDesignGeometricPresentationRepresentation>

mechanical_design_presentation_representation_with_draughting_arena: Arena<MechanicalDesignPresentationRepresentationWithDraughting>

mechanical_design_shaded_presentation_representation_arena: Arena<MechanicalDesignShadedPresentationRepresentation>

model_geometric_view_arena: Arena<ModelGeometricView>

modified_geometric_tolerance_arena: Arena<ModifiedGeometricTolerance>

name_attribute_arena: Arena<NameAttribute>

named_unit_arena: Arena<NamedUnit>

next_assembly_usage_occurrence_arena: Arena<NextAssemblyUsageOccurrence>

numeric_expression_arena: Arena<NumericExpression>

object_role_arena: Arena<ObjectRole>

offset_surface_arena: Arena<OffsetSurface>

one_direction_repeat_factor_arena: Arena<OneDirectionRepeatFactor>

open_shell_arena: Arena<OpenShell>

organization_arena: Arena<Organization>

organization_relationship_arena: Arena<OrganizationRelationship>

organization_role_arena: Arena<OrganizationRole>

organization_type_arena: Arena<OrganizationType>

organization_type_role_arena: Arena<OrganizationTypeRole>

organizational_address_arena: Arena<OrganizationalAddress>

organizational_project_arena: Arena<OrganizationalProject>

organizational_project_relationship_arena: Arena<OrganizationalProjectRelationship>

organizational_project_role_arena: Arena<OrganizationalProjectRole>

oriented_closed_shell_arena: Arena<OrientedClosedShell>

oriented_edge_arena: Arena<OrientedEdge>

over_riding_styled_item_arena: Arena<OverRidingStyledItem>

parallelism_tolerance_arena: Arena<ParallelismTolerance>

parametric_representation_context_arena: Arena<ParametricRepresentationContext>

path_arena: Arena<Path>

pcurve_arena: Arena<Pcurve>

perpendicularity_tolerance_arena: Arena<PerpendicularityTolerance>

person_arena: Arena<Person>

person_and_organization_arena: Arena<PersonAndOrganization>

person_and_organization_address_arena: Arena<PersonAndOrganizationAddress>

person_and_organization_assignment_arena: Arena<PersonAndOrganizationAssignment>

person_and_organization_role_arena: Arena<PersonAndOrganizationRole>

personal_address_arena: Arena<PersonalAddress>

placed_datum_target_feature_arena: Arena<PlacedDatumTargetFeature>

placement_arena: Arena<Placement>

planar_box_arena: Arena<PlanarBox>

planar_extent_arena: Arena<PlanarExtent>

plane_arena: Arena<Plane>

plane_angle_measure_with_unit_arena: Arena<PlaneAngleMeasureWithUnit>

plane_angle_unit_arena: Arena<PlaneAngleUnit>

plus_minus_tolerance_arena: Arena<PlusMinusTolerance>

point_arena: Arena<Point>

point_style_arena: Arena<PointStyle>

poly_loop_arena: Arena<PolyLoop>

polyline_arena: Arena<Polyline>

position_tolerance_arena: Arena<PositionTolerance>

pre_defined_character_glyph_arena: Arena<PreDefinedCharacterGlyph>

pre_defined_colour_arena: Arena<PreDefinedColour>

pre_defined_curve_font_arena: Arena<PreDefinedCurveFont>

pre_defined_item_arena: Arena<PreDefinedItem>

pre_defined_marker_arena: Arena<PreDefinedMarker>

pre_defined_point_marker_symbol_arena: Arena<PreDefinedPointMarkerSymbol>

pre_defined_presentation_style_arena: Arena<PreDefinedPresentationStyle>

pre_defined_surface_side_style_arena: Arena<PreDefinedSurfaceSideStyle>

pre_defined_symbol_arena: Arena<PreDefinedSymbol>

pre_defined_terminator_symbol_arena: Arena<PreDefinedTerminatorSymbol>

pre_defined_text_font_arena: Arena<PreDefinedTextFont>

pre_defined_tile_arena: Arena<PreDefinedTile>

precision_qualifier_arena: Arena<PrecisionQualifier>

presentation_area_arena: Arena<PresentationArea>

presentation_layer_assignment_arena: Arena<PresentationLayerAssignment>

presentation_representation_arena: Arena<PresentationRepresentation>

presentation_set_arena: Arena<PresentationSet>

presentation_size_arena: Arena<PresentationSize>

presentation_style_assignment_arena: Arena<PresentationStyleAssignment>

presentation_style_by_context_arena: Arena<PresentationStyleByContext>

presentation_view_arena: Arena<PresentationView>

presented_item_arena: Arena<PresentedItem>

presented_item_representation_arena: Arena<PresentedItemRepresentation>

product_arena: Arena<Product>

product_category_arena: Arena<ProductCategory>

product_category_relationship_arena: Arena<ProductCategoryRelationship>

product_concept_arena: Arena<ProductConcept>

product_concept_context_arena: Arena<ProductConceptContext>

product_concept_feature_arena: Arena<ProductConceptFeature>

product_concept_feature_category_arena: Arena<ProductConceptFeatureCategory>

product_context_arena: Arena<ProductContext>

product_definition_arena: Arena<ProductDefinition>

product_definition_context_arena: Arena<ProductDefinitionContext>

product_definition_context_association_arena: Arena<ProductDefinitionContextAssociation>

product_definition_context_role_arena: Arena<ProductDefinitionContextRole>

product_definition_effectivity_arena: Arena<ProductDefinitionEffectivity>

product_definition_formation_arena: Arena<ProductDefinitionFormation>

product_definition_formation_with_specified_source_arena: Arena<ProductDefinitionFormationWithSpecifiedSource>

product_definition_occurrence_arena: Arena<ProductDefinitionOccurrence>

product_definition_relationship_arena: Arena<ProductDefinitionRelationship>

product_definition_relationship_relationship_arena: Arena<ProductDefinitionRelationshipRelationship>

product_definition_shape_arena: Arena<ProductDefinitionShape>

product_definition_substitute_arena: Arena<ProductDefinitionSubstitute>

product_definition_usage_arena: Arena<ProductDefinitionUsage>

product_definition_with_associated_documents_arena: Arena<ProductDefinitionWithAssociatedDocuments>

product_related_product_category_arena: Arena<ProductRelatedProductCategory>

projected_zone_definition_arena: Arena<ProjectedZoneDefinition>

property_definition_arena: Arena<PropertyDefinition>

property_definition_relationship_arena: Arena<PropertyDefinitionRelationship>

property_definition_representation_arena: Arena<PropertyDefinitionRepresentation>

qualified_representation_item_arena: Arena<QualifiedRepresentationItem>

quasi_uniform_curve_arena: Arena<QuasiUniformCurve>

quasi_uniform_surface_arena: Arena<QuasiUniformSurface>

ratio_measure_with_unit_arena: Arena<RatioMeasureWithUnit>

ratio_unit_arena: Arena<RatioUnit>

rational_b_spline_curve_arena: Arena<RationalBSplineCurve>

rational_b_spline_surface_arena: Arena<RationalBSplineSurface>

real_literal_arena: Arena<RealLiteral>

real_representation_item_arena: Arena<RealRepresentationItem>

repositioned_tessellated_item_arena: Arena<RepositionedTessellatedItem>

representation_arena: Arena<Representation>

representation_context_arena: Arena<RepresentationContext>

representation_context_reference_arena: Arena<RepresentationContextReference>

representation_item_arena: Arena<RepresentationItem>

representation_map_arena: Arena<RepresentationMap>

representation_reference_arena: Arena<RepresentationReference>

representation_relationship_arena: Arena<RepresentationRelationship>

representation_relationship_with_transformation_arena: Arena<RepresentationRelationshipWithTransformation>

resource_property_arena: Arena<ResourceProperty>

resource_requirement_type_arena: Arena<ResourceRequirementType>

role_association_arena: Arena<RoleAssociation>

roundness_tolerance_arena: Arena<RoundnessTolerance>

seam_curve_arena: Arena<SeamCurve>

security_classification_arena: Arena<SecurityClassification>

security_classification_assignment_arena: Arena<SecurityClassificationAssignment>

security_classification_level_arena: Arena<SecurityClassificationLevel>

shape_aspect_arena: Arena<ShapeAspect>

shape_aspect_associativity_arena: Arena<ShapeAspectAssociativity>

shape_aspect_deriving_relationship_arena: Arena<ShapeAspectDerivingRelationship>

shape_aspect_relationship_arena: Arena<ShapeAspectRelationship>

shape_definition_representation_arena: Arena<ShapeDefinitionRepresentation>

shape_dimension_representation_arena: Arena<ShapeDimensionRepresentation>

shape_representation_arena: Arena<ShapeRepresentation>

shape_representation_relationship_arena: Arena<ShapeRepresentationRelationship>

shape_representation_with_parameters_arena: Arena<ShapeRepresentationWithParameters>

shell_based_surface_model_arena: Arena<ShellBasedSurfaceModel>

si_unit_arena: Arena<SiUnit>

simple_generic_expression_arena: Arena<SimpleGenericExpression>

simple_numeric_expression_arena: Arena<SimpleNumericExpression>

solid_angle_unit_arena: Arena<SolidAngleUnit>

solid_model_arena: Arena<SolidModel>

spherical_surface_arena: Arena<SphericalSurface>

start_request_arena: Arena<StartRequest>

start_work_arena: Arena<StartWork>

state_observed_arena: Arena<StateObserved>

state_type_arena: Arena<StateType>

straightness_tolerance_arena: Arena<StraightnessTolerance>

styled_item_arena: Arena<StyledItem>

surface_arena: Arena<Surface>

surface_curve_arena: Arena<SurfaceCurve>

surface_of_linear_extrusion_arena: Arena<SurfaceOfLinearExtrusion>

surface_of_revolution_arena: Arena<SurfaceOfRevolution>

surface_profile_tolerance_arena: Arena<SurfaceProfileTolerance>

surface_rendering_properties_arena: Arena<SurfaceRenderingProperties>

surface_side_style_arena: Arena<SurfaceSideStyle>

surface_style_boundary_arena: Arena<SurfaceStyleBoundary>

surface_style_control_grid_arena: Arena<SurfaceStyleControlGrid>

surface_style_fill_area_arena: Arena<SurfaceStyleFillArea>

surface_style_parameter_line_arena: Arena<SurfaceStyleParameterLine>

surface_style_reflectance_ambient_arena: Arena<SurfaceStyleReflectanceAmbient>

surface_style_rendering_arena: Arena<SurfaceStyleRendering>

surface_style_rendering_with_properties_arena: Arena<SurfaceStyleRenderingWithProperties>

surface_style_segmentation_curve_arena: Arena<SurfaceStyleSegmentationCurve>

surface_style_silhouette_arena: Arena<SurfaceStyleSilhouette>

surface_style_transparent_arena: Arena<SurfaceStyleTransparent>

surface_style_usage_arena: Arena<SurfaceStyleUsage>

swept_surface_arena: Arena<SweptSurface>

symbol_colour_arena: Arena<SymbolColour>

symbol_representation_arena: Arena<SymbolRepresentation>

symbol_style_arena: Arena<SymbolStyle>

symbol_target_arena: Arena<SymbolTarget>

symmetry_tolerance_arena: Arena<SymmetryTolerance>

terminator_symbol_arena: Arena<TerminatorSymbol>

tessellated_annotation_occurrence_arena: Arena<TessellatedAnnotationOccurrence>

tessellated_curve_set_arena: Arena<TessellatedCurveSet>

tessellated_face_arena: Arena<TessellatedFace>

tessellated_geometric_set_arena: Arena<TessellatedGeometricSet>

tessellated_item_arena: Arena<TessellatedItem>

tessellated_shape_representation_arena: Arena<TessellatedShapeRepresentation>

tessellated_shell_arena: Arena<TessellatedShell>

tessellated_solid_arena: Arena<TessellatedSolid>

tessellated_structured_item_arena: Arena<TessellatedStructuredItem>

tessellated_surface_set_arena: Arena<TessellatedSurfaceSet>

text_font_arena: Arena<TextFont>

text_literal_arena: Arena<TextLiteral>

text_style_arena: Arena<TextStyle>

text_style_for_defined_font_arena: Arena<TextStyleForDefinedFont>

text_style_with_box_characteristics_arena: Arena<TextStyleWithBoxCharacteristics>

texture_style_specification_arena: Arena<TextureStyleSpecification>

texture_style_tessellation_specification_arena: Arena<TextureStyleTessellationSpecification>

time_unit_arena: Arena<TimeUnit>

tolerance_value_arena: Arena<ToleranceValue>

tolerance_zone_arena: Arena<ToleranceZone>

tolerance_zone_definition_arena: Arena<ToleranceZoneDefinition>

tolerance_zone_form_arena: Arena<ToleranceZoneForm>

tolerance_zone_with_datum_arena: Arena<ToleranceZoneWithDatum>

topological_representation_item_arena: Arena<TopologicalRepresentationItem>

toroidal_surface_arena: Arena<ToroidalSurface>

total_runout_tolerance_arena: Arena<TotalRunoutTolerance>

trimmed_curve_arena: Arena<TrimmedCurve>

two_direction_repeat_factor_arena: Arena<TwoDirectionRepeatFactor>

type_qualifier_arena: Arena<TypeQualifier>

uncertainty_measure_with_unit_arena: Arena<UncertaintyMeasureWithUnit>

uncertainty_qualifier_arena: Arena<UncertaintyQualifier>

unequally_disposed_geometric_tolerance_arena: Arena<UnequallyDisposedGeometricTolerance>

uniform_curve_arena: Arena<UniformCurve>

uniform_surface_arena: Arena<UniformSurface>

value_format_type_qualifier_arena: Arena<ValueFormatTypeQualifier>

value_representation_item_arena: Arena<ValueRepresentationItem>

vector_arena: Arena<Vector>

versioned_action_request_arena: Arena<VersionedActionRequest>

vertex_arena: Arena<Vertex>

vertex_loop_arena: Arena<VertexLoop>

vertex_point_arena: Arena<VertexPoint>

vertex_shell_arena: Arena<VertexShell>

view_volume_arena: Arena<ViewVolume>

volume_unit_arena: Arena<VolumeUnit>

wire_shell_arena: Arena<WireShell>

complex_unit_arena: Arena<ComplexUnit>

Implementations

impl StepModel

pub fn header(&self) -> &FileHeader

The file’s HEADER section. On a model returned by read this is the source file’s header, the identified schema included.

impl StepModel

pub fn ref_graph(&self) -> RefGraph

Build the reverse-reference index for this model.

O(total references); builds the whole index in one pass. Build once and reuse for many reverse queries.

impl StepModel

pub fn scene(&self) -> Scene<'_>

Build a Scene over this model — the entry point for the navigation handles. The reverse-reference index is built lazily on first use; reuse the returned scene for all navigation.

Trait Implementations

impl Debug for StepModel

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StepModel

fn default() -> StepModel

Returns the “default value” for a type.