Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 1234]

▼NAZStd
Citerator_traits< typename std::vector< sdf::v13::Error >::const_iterator >
Citerator_traits< typename std::vector< sdf::v13::Error >::iterator >
▼NROS2RobotImporter
▼NSDFormat
CModelPluginImporterHook
CSensorImporterHook
▼NUrdfParser
CParseResult	Functions for parsing URDF/SDF data
▼NUtils
▼Nxacro
CExecutionOutcome	Structure that keeps all artifacts of xacro execution
CAvailableAsset
CDuplicatedJoint
CImportedAssetsDest	Structure contains paths to the temporary and destination directories for imported assets
CIncompleteInertia
CMissingInertia
CUrdfAsset	The structure contains a mapping between URDF's path to O3DE asset information
CUrdfModifications
CArticulationsMaker	Populates the entity with contents of the <inertial> and <joint> tag in the robot description
CCheckAssetPage
CCollidersMaker	Populates a given entity with all the contents of the <collider> tag in robot description
CFileSelectionPage
CInertialsMaker	Populates the entity with contents of the <inertial> tag in robot description
CIntroPage
CJointsMaker
CModifiedURDFWindow
CPrefabMakerPage
CRobotControlMaker
CRobotDescriptionPage
CRobotImporterRequest
CRobotImporterWidget	Handles UI for the process of URDF importing
CROS2RobotImporterEditorSystemComponent	Editor component for RobotImporter widget
CROS2RobotImporterModuleInterface
CROS2RobotImporterSystemComponent
CSdfAssetBuilder
CSdfAssetBuilderSettings
CSdfAssetBuilderSystemComponent	System component for registering and managing the SdfAssetBuilder
CSdfAssetPathResolverSettings
CSensorsMaker
CURDFPrefabMaker	Encapsulates constructive mapping of SDF elements to a complete prefab with entities and components
CVisualsMaker	Populates a given entity with all the contents of the <visual> tag in robot description
CXacroParamsPage	Wizard page that allows user to modify Xacro parameters