'Save parameters into MongoDB Buckets, and save the file ID into Params Collections.
Parameters
params : a list of parameters
args : dictionary, item meta data.
Returns
f_id : the Buckets ID of the parameters.'

def save_params(self, params=[], args={}):

    self.__autofill(args)
    s = time.time()
    f_id = self.paramsfs.put(self.__serialization(params))
    args.update({'f_id': f_id, 'time': datetime.utcnow()})
    self.db.Params.insert_one(args)
    print '[TensorDB]    Save    params:    SUCCESS,    took:    {}s'.format(round((time.time() - s), 2))
    return f_id
