ENH: added optional `cond` query kwarg to MongoTrials.delete_all
ENH: added optional `cond` query kwarg to MongoTrials.delete_all

beni55/hyperopt,dudalev/hyperopt,CVML/hyperopt,dallascard/hyperopt,nicholas-leonard/hyperopt,allansp84/hyperopt,466152112/hyperopt,mathkann/hyperopt,jaberg/hyperopt,w1kke/hyperopt