def put_unique(self,_id,key=None,value=None,**pair):
        return self.update(_id, key, value, **pair)
Generates a random distance matrix stored in condensed form. A
dataset/ETHPy150Open espeed/bulbs/bulbs/rexster/index.py/ManualIndex.put_unique--crossover with--dataset/ETHPy150Open scipy/scipy/scipy/cluster/hierarchy.py/_randdm