def bayesdb_insertmany(bdb, generator_id, rows):
    metamodel = core.bayesdb_generator_metamodel(bdb, generator_id)
    metamodel.insertmany(bdb, generator_id, rows)
set the cell value at x,y
dataset/ETHPy150Open probcomp/bayeslite/src/bqlfn.py/bayesdb_insertmany--crossover with--dataset/ETHPy150Open bfontaine/term2048/term2048/board.py/Board.setCell