Function stage_load 

pub fn stage_load(
    tx: &mut Transaction,
    schema: &Schema,
    draft: LoadDraft,
) -> StructuralResult<EntityId>

Stage one core IfcStructuralLoadStatic subtype create edit on tx.

Fails with StructuralError::InvalidDraftValue if any numeric component is set to a non-finite value. Returns the id staged for the new entity.