Stirrup

Attribute Name	Data Type	Description
no	int	Object number
material	int	Material
cover_points	List[int]	Cover Points No.
diameter	float	Stirrup diameter | d_s,st
diameter_of_curvature	float	Stirrup diameter of curvature | d_br,st
mandrel_diameter_factor	float	Mandrel diameter factor | k
reinforcement_area	float	Reinforcement area | a_sw
length	float	Length of one stirrup | L_st,1
weight	float	Weight of one stirrup | W_st,1
comment	str	Comment
generating_object_info	str	Generated by
is_generated	bool	Generated by
id_for_export_import	str
metadata_for_export_import	str