D3PDSizeSummary.Branchgroup Node1 D3PDSizeSummary.Branchgroup + name + nbr + totbytes + filebytes + totobj + subgroups + __init__() + get_subgroup() + add() + get_dict() + print_stats() + print_header() + print_trailer() Node2 string Node2->Node1 +tex_format +sg_tex_format +sg_text_format +sg_format +text_format +format