Serialize a full positional attribute list for an entity to a STEP body,
schema-aware per slot (SELECT qualification + REAL forcing). Used for
freshly-emitted overlay entities (addEntity, the in-store builders) whose
numbers never pass through a source token.
Serialize a full positional attribute list for an entity to a STEP body, schema-aware per slot (SELECT qualification + REAL forcing). Used for freshly-emitted overlay entities (
addEntity, the in-store builders) whose numbers never pass through a source token.