def _onStep(self):
        pass
Returns a max of 1 elements in the index matching the key/value pair.
dataset/ETHPy150Open pybrain/pybrain/pybrain/tools/gridsearch.py/GridSearch2D._onStep--crossover with--dataset/ETHPy150Open espeed/bulbs/bulbs/neo4jserver/index.py/Index.get_unique