def add_row(self,chrom,elements):
        pass
Initialize a collection attribute and return the collection adapter.
dataset/ETHPy150Open taoliu/taolib/Assoc/tables.py/Table.add_row--crossover with--dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/orm/attributes.py/init_state_collection