def _merge_sections(sec_a, sec_b):
sec_b.ids = list(sec_a.ids) + list(sec_b.ids[<NUM_LIT:1>:])<EOL>sec_b.ntype = sec_a.ntype<EOL>sec_b.pid = sec_a.pid<EOL>sec_a.ids = []<EOL>sec_a.pid = -<NUM_LIT:1><EOL>sec_a.ntype = <NUM_LIT:0><EOL>
Merge two sections

    Merges sec_a into sec_b and sets sec_a attributes to default