code: @SuppressWarnings("unchecked")
  	@Override
  	public EList<IfcRelSpaceBoundary1stLevel> getInnerBoundaries() {
  		return (EList<IfcRelSpaceBoundary1stLevel>) eGet(
  				Ifc4Package.Literals.IFC_REL_SPACE_BOUNDARY1ST_LEVEL__INNER_BOUNDARIES, true);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated